首页 > Term: shaft allowance
shaft allowance
The difference between the excavation diameter and the finished diameter in the clear; the extra space allowed to accommodate the permanent shaft lining.
- 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)