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check viewer
In bituminous coal mining, one who inspects and checks portions of a mine that have been leased to workers to see that the terms of lease, such as mining within specified limits, safety precautions, and production rate, are duly observed.
- 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)