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dummy gate
N. of Eng. A small gate made on the face between the mother gate and tailgate for the purpose of getting stone to make strip packs for roof support (when goaf roof is supported and not allowed to cave).
- 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)