socket in shaft pit 底坑电源插座
mine shaft pit 为通达地下矿床所开掘的井筒或巷道
auxiliary shaft pit shaft 副井井筒
tombs in earth shaft pit 土坑竖穴墓
multifunction shaft pit furnace 多功能井式炉
pit shaft 竖井
pit shaft building 井筒施工
pit shaft freezing 井筒冻结
pit shaft equipment 井筒装备
The original introduced some respects of the quality control in shaft pit shaft building.
本文介绍在立井井筒施工中质量控制方面的一些情况。
This text introduced the practice method of the box permanent steel petroleum derrick shaft sinking in the construction of vertical shaft pit shaft.
在立井井筒建设中，我们在原设计的基础上，对箱形永久钢井架凿井的实际方法作了改进。
The paper summarises the operational performance of the interlock System in pit-head equipment at No. 8 shaft of Ping-Ding-Shan Mine Bureau, Henan Province.
本文总结了作者根据河南省平顶山矿务局八矿井口实际情况所设计的一套井口设施联动闭锁系统。
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