大家在查：风井运输大巷煤柱走向长度回风巷主井回采煤量开拓煤量中国煤炭工业煤炭资源量

副井

n.auxiliary shaft

副井

英-汉网络释义

副井

auxiliary shaft

采煤与采煤机械英语词汇_百度文库 ... automatic spring set 弹簧自动复位装置 auxiliary shaft 副井 auxiliary switch 辅助开关 ...

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The coal cutter and partial holders withdrawn from 3301 working face should be hoisted by slow-motion winch of auxiliary shaft onto ground.

3301 工作面回收的采煤机和部分支架要由副井慢速绞车提升上井。

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the maximum tangential compressive reaches 2221 , which is about 76 . 6 % of the ultimate compressive strain , within safe status.

在龙固副井施工中，井壁环向最大压应变达 2221 ，约为极限压应变的 76 。6%，处于安全状态。

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Reform of frequency conversion of electrical apparatus control system to traveling cranes of main and auxiliary shafts of mine

煤矿主副井行车电控系统变频调速改造

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Digital Reconstruction of Assistant Mine Hoisting Winch Analogue Modulation System

副井提升机模拟系统的数字化改造

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High Accuracy Through Survey at Adits of Main and Auxiliary Shafts in Tashan Coalmine of Datong Coal Industry Group

同煤集团塔山矿主副井平峒高精度贯通测量

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Reasons and Treatments About Fissures on the Brake of the Secondary Hoisting Winch

副井提升绞车闸轮开裂的原因分析及处理

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Improvements of Brake-clearance Protector for Main and Auxiliary Shafts Winder

主副井绞车闸间隙保护装置的改进

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Transformation of Vice - well Winch in Yongshan Coal Industry Company

涌煤公司副井绞车改造

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Reasons and Reinforced Handle for Subsidiary-well Wall Crack of Xinyi Coal Mine

新义煤矿副井井壁破裂原因分析及加固处理

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