... shaft plumbing ==> 竖井垂线定向法 shaft pocket ==> 井底矿仓,井底矿仓 shaft position digitizer ==> 轴角模数转换器 ...
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shaft coal pocket 井底煤仓
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It is a critical task need to be solved urgently that the skip loading system for vertical shaft without measuring pocket should be equipped with quantitative loading unit.
无定量斗立井箕斗式装载系统加装定重装载装置是煤矿亟待解决的重要课题。
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