... underground mine drilling and blasting井下凿岩爆破 hoisting systems运输提升系统 ventilation systems通风系统 ...
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May repair and rebuild hoisting mechanism and other mechanical systems on industrial trucks and forklifts.
可以修复和重建工业卡车和叉车的起升机构和其他各种机械系统。
The hoisting and transport systems of its main shaft are reformed in 2005.
2005年该矿对主井提升及运输系统进行了技术改造。
Bell signal systems and communication systems must be using at same time for decline hoisting system.
斜井提升应同时设立电铃和电话两套信号系统。
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