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gearman
In beneficiation, smelting, and refining, one who tends a coarse or primary crusher that breaks large lumps of ore into a smaller size so that it may be run through smaller crushers or shipped to a plant for extraction of the valuable metal or minerals.
- 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)