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drift driller
In metal mining, one who operates a heavy, mounted, compressed-air, rock-drilling machine in driving drifts (horizontal passages running parallel to the vein opened up to facilitate mining of the ore).
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
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(Milwaukee, United States)