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footman
In salt production, a laborer who adjusts the height of the gate in the chute leading from the crusher by means of a lever, to regulate flow of crushed rock salt into vibrating screens that separate salt into various sizes prior to shipment or refining.
- 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)