<section powered-by="xiumi.us" style="margin: 10px 0px; padding: 0px; color: rgb(51, 51, 51); white-space: normal; max-width: 100%; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; background-color: rgb(255, 255, 255); text-align: center; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px 5px 0px 20px; max-width: 100%; box-sizing: border-box; display: inline-block; min-width: 10%; vertical-align: top; overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 0px 0px -20px; padding: 0px; max-width: 100%; box-sizing: border-box; text-align: left; transform: translate3d(-20px, 0px, 0px); overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; display: inline-block; width: 50px; height: 55px; vertical-align: top; overflow: hidden; overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; text-align: center; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; vertical-align: middle; display: inline-block; line-height: 0; width: 50px; overflow-wrap: break-word !important;"><img data-ratio="1.0538117" src="//cdn-2c-02.industics.com/public/upload/image/20210816/1629080600722720.gif" data-type="gif" data-w="446" width="100%" style="margin: 0px; padding: 0px; max-width: 100%; height: auto !important; box-sizing: border-box; vertical-align: middle; overflow-wrap: break-word !important; visibility: visible !important; width: 50px !important;"/></section></section></section></section><section powered-by="xiumi.us" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; display: inline-block; min-width: 10%; vertical-align: top; border-width: 2px; border-radius: 0px; border-style: dashed; border-color: rgb(29, 29, 29) rgb(29, 29, 29) rgb(182, 182, 182) rgb(182, 182, 182); box-shadow: rgb(0, 0, 0) 0px 0px 0px; overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 5px 0px -5px; padding: 0px; max-width: 100%; box-sizing: border-box; transform: translate3d(5px, 0px, 0px); overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 3px 15px; max-width: 100%; box-sizing: border-box; display: inline-block; min-width: 10%; vertical-align: top; border-width: 0px; border-radius: 0px; border-style: none; border-color: rgb(255, 255, 255); box-shadow: rgb(0, 0, 0) 0px 0px 0px; background-color: rgb(255, 202, 0); overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; transform: translate3d(1px, 0px, 0px); overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; text-align: justify; color: rgb(0, 0, 0); font-size: 17px; overflow-wrap: break-word !important;"><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; max-width: 100%; box-sizing: border-box; min-height: 1em; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;">本周词汇概览<br style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"/></strong></p></section></section></section></section></section></section></section></section><p></p><section powered-by="xiumi.us" style="margin: 10px 0px; padding: 0px; color: rgb(51, 51, 51); font-size: 17px; text-align: justify; white-space: normal; max-width: 100%; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; font-size: 16px; letter-spacing: 0.544px; max-width: 100%; box-sizing: border-box; height: 16px; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; height: 16px; width: 24px; float: left; border-top: 6px solid rgb(255, 202, 0); border-left: 6px solid rgb(255, 202, 0); border-right-color: rgb(255, 202, 0); border-bottom-color: rgb(255, 202, 0); overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><svg viewbox="0 0 1 1" style="float:left;line-height:0;width:0;vertical-align:top;"></svg></section></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; height: 16px; width: 24px; float: right; border-top: 6px solid rgb(255, 202, 0); border-right: 6px solid rgb(255, 202, 0); border-bottom-color: rgb(255, 202, 0); border-left-color: rgb(255, 202, 0); overflow-wrap: break-word !important;"><br style="margin: 0px; padding: 0px;"/></section></section><section style="margin: -13px 3px; padding: 12px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word; border-width: 1px; border-style: none solid; border-color: rgb(255, 111, 0) rgb(255, 202, 0); border-radius: 6px;"><section powered-by="xiumi.us" style="margin: 10px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; text-align: center; line-height: 1.8; color: rgb(0, 0, 0); overflow-wrap: break-word !important;"><p data-darkmode-color-16002497260202="rgb(163, 163, 163)" data-darkmode-original-color-16002497260202="rgb(0, 0, 0)" data-style="max-width: 100%; box-sizing: border-box; min-height: 1em; color: rgb(0, 0, 0); font-size: medium; text-indent: 2em; overflow-wrap: break-word !important;" class="js_darkmode__419" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; letter-spacing: 0.544px; max-width: 100%; box-sizing: border-box; min-height: 1em; font-size: medium; text-align: left; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; letter-spacing: 0.544px; cursor: pointer; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(163, 163, 163)" data-darkmode-original-color-16002497260202="rgb(0, 0, 0)" style="margin: 0px; padding: 0px; max-width: 100%; letter-spacing: 12px; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(0, 128, 255)" data-darkmode-original-color-16002497260202="rgb(0, 128, 255)" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(0, 128, 255)" data-darkmode-original-color-16002497260202="rgb(0, 128, 255)" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">●</strong></strong>&nbsp;</strong><span style="margin: 0px; padding: 0px; max-width: 100%; cursor: pointer; font-size: 16px; letter-spacing: 0.544px;">313</span><span style="margin: 0px; padding: 0px; max-width: 100%; cursor: pointer; font-size: 16px; letter-spacing: 2px; text-indent: 30px;">：订货点系统</span></span></p><p data-darkmode-color-16002497260202="rgb(163, 163, 163)" data-darkmode-original-color-16002497260202="rgb(0, 0, 0)" data-style="max-width: 100%; box-sizing: border-box; min-height: 1em; color: rgb(0, 0, 0); font-size: medium; text-indent: 2em; overflow-wrap: break-word !important;" class="js_darkmode__419" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; letter-spacing: 0.544px; max-width: 100%; box-sizing: border-box; min-height: 1em; font-size: medium; text-align: left; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; background-color: rgb(252, 200, 0);"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 16px; letter-spacing: 2px; text-indent: 30px; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(163, 163, 163)" data-darkmode-original-color-16002497260202="rgb(0, 0, 0)" style="margin: 0px; padding: 0px; max-width: 100%; font-size: medium; text-indent: 32px; letter-spacing: 12px; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(163, 163, 163)" data-darkmode-original-color-16002497260202="rgb(0, 0, 0)" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(163, 163, 163)" data-darkmode-original-color-16002497260202="rgb(0, 0, 0)" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(0, 128, 255)" data-darkmode-original-color-16002497260202="rgb(0, 128, 255)" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(0, 128, 255)" data-darkmode-original-color-16002497260202="rgb(0, 128, 255)" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">●</strong></strong>&nbsp;</strong></strong></strong><span style="margin: 0px; padding: 0px; max-width: 100%; text-indent: 32px; letter-spacing: 0.544px;">314</span><span style="margin: 0px; padding: 0px; max-width: 100%;">：</span></span><span style="margin: 0px; padding: 0px; font-family: &quot;思源黑体 CN Regular&quot;; font-size: 16px; letter-spacing: 2px; text-align: center;">安全库存</span></span></p><p data-darkmode-color-16002497260202="rgb(163, 163, 163)" data-darkmode-original-color-16002497260202="rgb(0, 0, 0)" data-style="max-width: 100%; box-sizing: border-box; min-height: 1em; color: rgb(0, 0, 0); font-size: medium; text-indent: 2em; overflow-wrap: break-word !important;" class="js_darkmode__419" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; letter-spacing: 0.544px; max-width: 100%; box-sizing: border-box; min-height: 1em; font-size: medium; text-align: left; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; font-size: 16px; letter-spacing: 2px; text-indent: 30px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(163, 163, 163)" data-darkmode-original-color-16002497260202="rgb(0, 0, 0)" style="margin: 0px; padding: 0px; font-size: medium; text-indent: 32px; max-width: 100%; letter-spacing: 12px; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(0, 128, 255)" data-darkmode-original-color-16002497260202="rgb(0, 128, 255)" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(0, 128, 255)" data-darkmode-original-color-16002497260202="rgb(0, 128, 255)" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">●</strong></strong>&nbsp;</strong><strong data-darkmode-color-16002497260202="rgb(163, 163, 163)" data-darkmode-original-color-16002497260202="rgb(0, 0, 0)" style="margin: 0px; padding: 0px; font-size: medium; text-indent: 32px; max-width: 100%; letter-spacing: 12px; box-sizing: border-box !important; overflow-wrap: break-word !important;"></strong></span><span style="margin: 0px; padding: 0px; font-size: 16px; max-width: 100%; letter-spacing: 0.544px; box-sizing: border-box !important; overflow-wrap: break-word !important;">315</span><span style="margin: 0px; padding: 0px; font-size: 16px; letter-spacing: 2px; text-indent: 30px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">：确定服务水平</span></p><p data-darkmode-color-16002497260202="rgb(163, 163, 163)" data-darkmode-original-color-16002497260202="rgb(0, 0, 0)" data-style="max-width: 100%; box-sizing: border-box; min-height: 1em; color: rgb(0, 0, 0); font-size: medium; text-indent: 2em; overflow-wrap: break-word !important;" class="js_darkmode__419" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; letter-spacing: 0.544px; max-width: 100%; box-sizing: border-box; min-height: 1em; font-size: medium; text-align: left; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 16px; letter-spacing: 2px; text-indent: 30px; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(163, 163, 163)" data-darkmode-original-color-16002497260202="rgb(0, 0, 0)" style="margin: 0px; padding: 0px; font-size: medium; text-indent: 32px; max-width: 100%; letter-spacing: 12px; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(0, 128, 255)" data-darkmode-original-color-16002497260202="rgb(0, 128, 255)" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong data-darkmode-color-16002497260202="rgb(0, 128, 255)" data-darkmode-original-color-16002497260202="rgb(0, 128, 255)" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">●</strong></strong>&nbsp;</strong></span><span style="margin: 0px; padding: 0px; font-size: 16px; max-width: 100%; letter-spacing: 0.544px; box-sizing: border-box !important; overflow-wrap: break-word !important;">316</span><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 16px; letter-spacing: 2px; text-indent: 30px; box-sizing: border-box !important; overflow-wrap: break-word !important;">：</span><span style="margin: 0px; padding: 0px; font-family: &quot;思源黑体 CN Regular&quot;; font-size: 16px; letter-spacing: 2px; text-align: center;">不同的预测与提前期间隔</span></p></section></section></section><section style="margin: 0px; padding: 0px; font-size: 16px; letter-spacing: 0.544px; max-width: 100%; box-sizing: border-box; height: 16px; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; height: 16px; width: 24px; float: left; border-bottom: 6px solid rgb(255, 202, 0); border-left: 6px solid rgb(255, 202, 0); border-top-color: rgb(255, 202, 0); border-right-color: rgb(255, 202, 0); overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><svg viewbox="0 0 1 1" style="float:left;line-height:0;width:0;vertical-align:top;"></svg></section></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; height: 16px; width: 24px; float: right; border-bottom: 6px solid rgb(255, 202, 0); border-right: 6px solid rgb(255, 202, 0); border-top-color: rgb(255, 202, 0); border-left-color: rgb(255, 202, 0); overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><svg viewbox="0 0 1 1" style="float:left;line-height:0;width:0;vertical-align:top;"></svg></section></section></section></section><section powered-by="xiumi.us" style="margin: 0px; padding: 0px; color: rgb(51, 51, 51); text-align: justify; white-space: normal; max-width: 100%; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; max-width: 100%; box-sizing: border-box; min-height: 1em; overflow-wrap: break-word !important;"><br style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;"/></p></section><section powered-by="xiumi.us" style="margin: 10px 0px; padding: 0px; color: rgb(51, 51, 51); font-size: 17px; white-space: normal; max-width: 100%; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; background-color: rgb(255, 255, 255); text-align: center; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px 5px 0px 20px; max-width: 100%; box-sizing: border-box; display: inline-block; min-width: 10%; vertical-align: top; overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; display: inline-block; min-width: 10%; vertical-align: top; border-width: 2px; border-radius: 0px; border-style: dashed; border-color: rgb(29, 29, 29) rgb(29, 29, 29) rgb(182, 182, 182) rgb(182, 182, 182); box-shadow: rgb(0, 0, 0) 0px 0px 0px; overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 5px 0px -5px; padding: 0px; max-width: 100%; box-sizing: border-box; transform: translate3d(5px, 0px, 0px); overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 3px 15px; max-width: 100%; box-sizing: border-box; display: inline-block; min-width: 10%; vertical-align: top; border-width: 0px; border-radius: 0px; border-style: none; border-color: rgb(255, 255, 255); box-shadow: rgb(0, 0, 0) 0px 0px 0px; background-color: rgb(255, 202, 0); overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; transform: translate3d(1px, 0px, 0px); overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; text-align: justify; color: rgb(0, 0, 0); overflow-wrap: break-word !important;"><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; max-width: 100%; box-sizing: border-box; min-height: 1em; text-align: left; text-indent: 32px; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">314</span><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; letter-spacing: 0.544px; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">『安全库存</span></strong></strong><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; letter-spacing: 0.544px; font-size: 18px; overflow-wrap: break-word !important;">』</strong></p></section></section></section></section></section></section></section></section><section powered-by="xiumi.us" style="margin: 0px; padding: 0px; color: rgb(51, 51, 51); text-align: justify; white-space: normal; max-width: 100%; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><section style="margin: 15px 0px -15px; padding: 0px; max-width: 100%; box-sizing: border-box; align-items: center; display: flex; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; display: inline-block; vertical-align: bottom; width: auto; flex: 1 0 1px; overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; align-items: center; display: flex; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; display: inline-block; vertical-align: bottom; width: auto; flex: 1 1 auto; overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; background-color: rgb(255, 202, 0); height: 1px; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><svg viewbox="0 0 1 1" style="float:left;line-height:0;width:0;vertical-align:top;"></svg></section></section></section></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; display: inline-block; vertical-align: bottom; width: auto; flex: 0 0 auto; box-shadow: rgb(255, 202, 0) 0px 0px 0px; line-height: 0; letter-spacing: 0px; overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; text-align: center; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; display: inline-block; width: 10px; height: 30px; vertical-align: top; overflow: hidden; border-width: 0px; box-shadow: rgb(255, 202, 0) 0px 0px 0px; overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 10px 0px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; font-size: 0px; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; display: inline-block; width: 10px; height: 10px; vertical-align: top; overflow: hidden; background-color: rgb(255, 202, 0); border-width: 5px; border-radius: 0px; border-style: solid; border-color: rgb(255, 202, 0); box-shadow: rgb(255, 255, 255) 1px 1px 0px inset; line-height: 0; letter-spacing: 0px; overflow-wrap: break-word !important;"><br style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"/></section></section></section></section></section></section></section></section><section style="margin: 0px; padding: 0px 10px; max-width: 100%; box-sizing: border-box; display: inline-block; vertical-align: bottom; width: auto; flex: 0 1 auto; overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; text-align: center; font-size: 18px; color: rgb(255, 202, 0); letter-spacing: 3px; line-height: 1; overflow-wrap: break-word !important;"><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; max-width: 100%; box-sizing: border-box; min-height: 1em; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;">文字专栏</strong></p></section></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; display: inline-block; vertical-align: bottom; width: auto; flex: 1 0 1px; overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;"><section style="margin: 0px; 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padding: 0px; color: rgb(51, 51, 51); font-size: 17px; white-space: normal; max-width: 100%; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; display: inline-block; width: 677px; vertical-align: top; border-color: rgb(255, 211, 171) rgb(255, 202, 0) rgb(255, 202, 0); border-width: 1px; border-radius: 0px; border-style: none solid solid; overflow-wrap: break-word !important;"><section powered-by="xiumi.us" style="margin: 20px 0px 13px; padding: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;"><section style="margin: 0px; padding: 0px 10px; max-width: 100%; box-sizing: border-box; color: rgb(240, 176, 121); line-height: 1.8; letter-spacing: 1.8px; overflow-wrap: break-word !important;"><p style="margin: 0cm 0cm 0.0001pt; padding: 0px; clear: both; max-width: 100%; min-height: 1em; letter-spacing: 1.8px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; text-align: justify; text-indent: 32.3pt; line-height: 25.5px; box-sizing: border-box !important; overflow-wrap: break-word !important;"><br style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"/></p><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">各位朋友大家好，欢迎来到Tonii老师精益讲堂，接下来Tonii老师将带领大家进入，“每天5分钟，精益伴你行”系列课程。</span></section><p style="margin-top: 0px; margin-bottom: 0.1px; padding: 0px; clear: both; max-width: 100%; min-height: 1em; letter-spacing: 1.8px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; text-align: justify; text-indent: 43px; line-height: 1.75em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><br style="margin: 0px; padding: 0px;"/></p><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">今天我们来学习安全库存。</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><br style="margin: 0px; padding: 0px;"/></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">一、确定安全库存</span></strong><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;"></span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">安全库存用于预防供给与需求的不确定性。不确定性分为两种：数量的不确定性和时间的不确定性。当供给或需求数量发生变化时，产生数量的不确定性，如给定期间内需求大于或小于预期数量。当供给或需求的接收时间与预期不符时，产生时间的不确定性，如客户或供应商可能变更交付日期。</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">有两种方式可以预防不确定性：保留额外库存——称为安全库存（safety stock），或提前订货——称为安全提前期（safety lead time）。安全库存是计算出来的额外保留的库存量，用于防止数量的不确定性，安全提前期是通过早于需要的时间进行订单发放与订货接收来预防时间的不确定性。安全库存与安全提前期都会产生多余库存，但其计算方法不同。</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">安全库存是预防不确定性最常用的方法，也是本次主要讨论的内容，所需要的安全库存取决于以下几个因素：</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">1）提前期内需求的变动性。变动越大，则所需要的安全库存量也越大。</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">2）再订货频率。如果经常订货，则需求的变化或需求的变动性就能及早发现。</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">3）所期望的服务水平。服务水平所要求的库存量越高，则更能适应周期性的需求增长。</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">4）提前期时长。提前期越长，特定服务水平下的安全库存越多，这也是为什么要尽量减少提前期的一个重要原因。</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">&nbsp;</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">二、提前期内需求变化</span></strong><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;"></span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">实际需求偏离预测值有两个原因：预测平均需求时的偏移误差及需求与预测值之间的随机误差，在确定安全库存时主要关注后者。</span></section><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; text-align: center;"><img class="rich_pages wxw-img js_insertlocalimg" data-ratio="0.60546875" data-s="300,640" src="//cdn-2c-02.industics.com/public/upload/image/20210816/1629080601337276.png" data-type="png" data-w="1280" data-imgqrcoded="1" style="margin: 0px; padding: 0px; max-width: 100%; height: auto !important; vertical-align: bottom;"/><span style="margin: 0px; padding: 0px; letter-spacing: 0.544px; font-size: 16px; text-indent: 2em;"></span></p><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;"></span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">如上表所示，假如两种产品A和B有10周的销售历史记录，两种产品提前期的平均需求都是每周1000单位。<em style="margin: 0px; padding: 0px;">(这里为了简化起见，提前期与销售历史的间隔时间都为一周，一般情况下并非如此，订购提前期与销售间隔之间的差别将在后面谈到。)</em>但产品A的每周需求变化区间为700~1400单位，产品B为200~1600单位产品。B产品比A产品的需求更不稳定，如果订货点都为1200单位，则A出现一次缺货而B出现4次缺货。如果要提供相同的服务水平（即每种产品缺货次数相同），就需要运用一些预测产品需求随机性的方法。</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">&nbsp;</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">三、平均需求的变化</span></strong><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;"></span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">假设过去100周，某一产品的历史需求显示其平均每周需求为1000单位，期望情况是把大部分需求都在1000单位左右，只有少数偏离平均值较远，更少的几个偏离非常远。如把每周需求归入平均值附近的组或区间的话，就产生了需求平均值的分布。假设需求分布如下：</span></section><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; text-align: center;"><img class="rich_pages wxw-img js_insertlocalimg" data-ratio="0.6" data-s="300,640" src="//cdn-2c-02.industics.com/public/upload/image/20210816/1629080601649051.png" data-type="png" data-w="1280" data-imgqrcoded="1" style="margin: 0px; padding: 0px; max-width: 100%; height: auto !important; vertical-align: bottom;"/><span style="margin: 0px; padding: 0px; letter-spacing: 0.544px; font-size: 16px; text-indent: 2em;"></span></p><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;"></span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">将这些数据整理后的结果如下图所示，该形状表明，虽然分布不同，但是遵循一定的模型，如图中平滑的曲线所示，这样一个自然的模型表明即可预测性，只要需求条件不变，我们就可以预测到大致不变的需求模型。如果需求不确定，那么需求模型也就不确定，预测也就更难准确。幸运的是，大多数需求是稳定且可预测的。</span></section><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; text-align: center;"><img class="rich_pages wxw-img js_insertlocalimg" data-ratio="0.6769436997319035" data-s="300,640" src="//cdn-2c-02.industics.com/public/upload/image/20210816/1629080602600772.jpeg" data-type="jpeg" data-w="746" data-imgqrcoded="1" style="margin: 0px; padding: 0px; max-width: 100%; height: auto !important; vertical-align: bottom;"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; text-align: center;"><br style="margin: 0px; padding: 0px;"/></p><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">四、确定安全库存及订货点</span></strong><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;"></span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">正态曲线的一个特征就是平均值两边是对称的，这就意味着实际需求量一半的概率小于平均值，一半的概率大于平均值，安全库存只需要用来预防提前期中实际需求量大于平均值的部分，因此50%的平均服务水平可以在没有安全库存的情况下完成，如果需要更高的服务水平就需要安全库存来预防实际需求量大于平均值时的需要。</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">例题：</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">如果标准差为200单位，提前期内需求量为1000单位，安全库存为200单位，</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">1）计算在84%的服务水平情况下的安全库存与订货点。</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">2）如果保留两个标准差的安全库存量，计算安全库存与订货点。</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">答案：</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">1）安全库存量=1标准差=1x200=200单位</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">订货点=提前期内需求量+安全库存=1000+200=1200单位</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">其中提前期内需求量与安全库存是预先确定的，在这种安全库存与订货点条件下，平均有84%的可能缺货时间不会发生缺货。</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">2）安全库存=2x200=400单位</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">订货点=提前期内需求量+安全库存= 1000+400=1400单位</span></section><section style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; min-height: 1em; letter-spacing: 0.544px; font-size: 16px; text-align: justify; line-height: 2; text-indent: 2em; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; font-size: 17px; color: rgb(0, 0, 0); box-sizing: border-box !important; overflow-wrap: break-word !important;">安全系数：服务水平与作为安全库存量的标准差直接相关，通常称为安全系数。下表展示了不同服务水平下的安全系数</span></section><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; text-align: center;"><img class="rich_pages wxw-img js_insertlocalimg" data-ratio="0.5069897483690587" data-s="300,640" src="//cdn-2c-02.industics.com/public/upload/image/20210816/1629080603784573.png" data-type="png" data-w="1073" data-imgqrcoded="1" style="margin: 0px; padding: 0px; max-width: 100%; height: auto !important; vertical-align: bottom;"/></p><section style="margin: 0px; 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