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field investigation
In reference to experimental-mine tests, the investigation made at a mine when a large sample is taken for testing at the experimental mine; this investigation includes the taking of road dust, rib dust, mine air, and standard coal samples, and the noting of conditions affecting the safety of the mine.
- 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)