首页 > Term: face timbering
face timbering
The placing of safety posts at the working face to support the roof of the mine. The safety post is the most important timber in a mine because exposure is greater at this point than at any other since the newly exposed top is always of unknown quality.
- 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)