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2022-08-23 10:23:04
<section data-role="outer" class="article135" label="edit by 135editor"><p style="outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">一、细纱工序的任务和设备</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">(一)细纱工序的任务<br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; visibility: visible; overflow-wrap: break-word !important;"></p><p style="margin-top: 10px; margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">细纱工序是纺纱工艺流程中最后一道工序,细纱工序的产品是细纱。它将前一道工序生产的半制品粗纱,纺制成一定粗细并符合用户质量要求的细纱。一般还要经过络筒、并纱后供捻线、机织或针织使用。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; visibility: visible; overflow-wrap: break-word !important;">细纱工序的主要任务是:</strong></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">牵伸——将粗纱均匀地拉长拉细,达到后道工序需要的特数(支数)。总牵伸倍数为10~50倍。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">加捻——将牵伸后的粗纱加上适当的捻度,增强纤维之间的抱合力,使成纱具有一定的强力、弹性和光泽。捻度范围为40—100捻/10厘米。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">卷绕成形——将拉长加捻后的纱条,按照成形要求卷绕在筒管上,做成管纱状的细纱。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">(二)细纱机的主要结构和作用</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">FA系列细纱机常用的型号有FA502、FA503、FA506、FA507、FAS08、FA541、FAl518等。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; visibility: visible; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">细纱机的主要结构包括喂入机构、牵伸机构、加捻机构和成形机构等。现以FA506型细纱机为例,介绍一下主要机构的作用。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">1、喂入机构喂入机构由粗纱架、导纱杆、横动装置等组成。粗纱架部分采用吊锭支撑,将粗纱管上端吊装在车顶板上,有单层四排或单层六排。吊锭装置可使粗纱退绕灵活,且不增加意外牵伸,有利于条干的均匀和缩小支数偏差。导纱杆用来引导粗纱退绕,可降低退绕时的张力。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">横动装置的作用是在粗纱喂入罗拉后,可横向移动,使纱条在胶辊、胶圈上均匀移动,均匀磨损,减少起槽、中凹等现象,延长胶辊胶圈的使用寿命,提高成纱质量。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">2、牵伸机构牵伸机构由加压装置、罗拉、胶辊胶圈和上下销等组成。牵伸机构采用三对罗拉、上短下长的胶圈、摆动弹簧销和摇架加压。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">当粗纱喂入牵伸机构后,由于三对罗拉的线速度由后向前逐渐增大,罗拉与胶辊握住纱条,在摇架加压的情况下,粗纱条逐步拉长变细,达到了牵伸的目的。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">加压牵伸是细纱机的重要部位,加压的作用是有力地握持住纤维,使纱条顺利牵伸。能否有效控制纤维的牵伸,是纺出均匀度高的细纱的关键。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">3、加捻卷绕机构加捻卷绕机构由导纱钩、钢领、钢丝圈、清洁器、锭子、筒管等组成。从罗拉上输出的纱条,必须加上捻回,才能具有一定的强力、弹性和光泽,成为有一定物理特性的细纱产品。由前罗拉输出的纱条,经过导纱钩,穿过钢领上的钢丝圈,然后绕在筒管上,筒管插在锭子上,筒管与锭子的速度一致。钢丝圈嵌在钢领边缘上,自由滑动。<br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">由前罗拉输出的纱条,经过导纱钩,穿过钢领上的钢丝圈,然后绕在筒管上,筒管插在锭子上,筒管与锭子的速度一致。钢丝圈嵌在钢领边缘上,自由滑动。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">当锭子转动时纱条一端受前罗拉钳制,另一端固定在锭子上旋转,对纱条产生张力,钢丝圈每旋转一圈,在钢丝圈至罗拉间这段纱上就获得一个捻回,产生了捻度。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">钢丝圈使纱条加捻,在单位时间内钢丝圈的回转数低于锭子的回转数,便将纱卷绕在纱管上。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">4.管纱成形机构为了便于细纱的生产、搬运、退绕和后加工,需将细纱卷绕在筒管上,并要求卷绕紧密、层次分清、成形良好、退绕方便等。细纱成形装置采用牵吊式成形机构,由钢丝绳牵吊钢领板与导纱板升降来完成。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">二、细纱运转操作</p><p style="outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">(一)交接班制度</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">交接班工作是保证生产正常运行的重要环节。交接班工作要做到对口交接,交班人要主动交清,接班人应认真检查,双方既要团结协作,又要严格分清责任。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;">1、</span>交班做到三清</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">●交清生产情况:如品种翻改、工艺变更。接清断头,换齐粗纱,整理好宝塔粗纱分段。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">●交清设备情况:包括机械运转、设备维修、电气等。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">●交清质量情况:树立质量第一思想,交清公用工具,收清回花。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">2、接班做到四查</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">●提前15分钟上车,全面检查上一班的生产情况,查品种翻改、工艺变更、储备量等。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">●查设备运转情况:牵伸部分的集棉器、胶辊、摇架是否正常。其他部件是否正常,有无缺损。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">●查粗纱错支、粗纱定台、宝塔分段及断头情况,查筒管是否插错及空锭情况等。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">●查清洁情况及公用工具齐全。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">(二)巡回工作</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">巡回工作是有计划地组织一轮班生产的重要方法。<br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">巡回的过程是发现问题、解决问题的过程。必须遵循巡回路线,主动掌握生产规律,保证生产的正常进行。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;">巡回路线</strong><br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: justify; font-size: 16px; line-height: 2em; font-family: 微软雅黑; overflow-wrap: break-word !important;" align="justify">采用单线巡回、双面照顾的巡回方法,按一定规律看管车道,同时照顾2台车两面的断头等工作。</p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br></p></section>