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gad
A heavy steel wedge, 6 in or 8 in (15.2 cm or 20.3 cm) long, with a narrow chisel point for cutting samples or breaking out pieces of loose rock.
- 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)