在热缩套管的封合过程中,电缆芯线接续完毕后,下列操作步骤中正确的顺序是:() ["①对已接续芯线进行绑扎","②在电缆两端切口处安装专用屏蔽连接线","③安装金属内衬套管并粘接固定纵剖拼缝,并将其两端用PVC胶带进行缠包","④用清洁剂对电缆外护层进行清洁并用砂布打磨清洁部位","①在电缆两端切口处安装专用屏蔽连接线","②对已接续芯线进行绑扎","③安装金属内衬套管并粘接固定纵剖拼缝,并将其两端用PVC胶带进行缠包","④用清洁剂对电缆外护层进行清洁并用砂布打磨清洁部位","①对已接续芯线进行绑扎","②在电缆两端切口处安装专用屏蔽连接线","③用清洁剂对电缆外护层进行清洁并用砂布打磨清洁部位","④安装金属内衬套管并粘接固定纵剖拼缝,并将其两端用PVC胶带进行缠包","①在电缆两端切口处安装专用屏蔽连接线","②对已接续芯线进行绑扎","③用清洁剂对电缆外护层进行清洁并用砂布打磨清洁部位","④安装金属内衬套管并粘接固定纵剖拼缝,并将其两端用PVC胶带进行缠包"]
什么叫绝热过程?
火力发电机组计算机监控系统输入信号有哪几类?
什么是凝汽器的最佳真空?
吸收烟气时,烟气和吸收剂在吸收塔中应有足够的接触面积和()。 ["A、滞留时间","B、流速","C、流量","D、压力。"]
什么是凝汽器的极限真空?