首页 > Term: bridal
bridal
Staff. A contrivance used in coal mining to prevent cars from overturning upon steep inclined planes having a rise of 1 ft in 3 ft or 4 ft (1 m in 3 m or 4 m).
- 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
- 100% positive feedback
(Milwaukee, United States)