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diving bell
A watertight, bell-shaped steel chamber that can be lowered to or raised from a freshwater or seawater bed by a crane. It is open at the bottom and filled with compressed air, so that persons can prepare foundations and undertake similar construction work underwater.
- 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)