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shaft mining
meaning in Chinese
竖井开采法
Examples
Scheme and its practice of reversing airflow in multi -
shaft mine
多风井联合通风的矿井反风方案及其实施
Reasons of roadway bottom floor dram in deep
shaft mining
area and its treatment
深井采区巷道底臌机理及防治技术
Related Words
mine
mining
mines
mine mine mine
shaft mine
shaft
shafted
shafting
selected mine mine
mine shaft lining
shaft mine
shaft miner
shaft mixer
shaft mounted thrust sensor
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