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METHOD OF FORMING A VERTICAL SEPARATING ENCLOSURE BETWEEN ORE BODY AND GOAF
METHOD OF FORMING A VERTICAL SEPARATING ENCLOSURE BETWEEN ORE BODY AND GOAF
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机译:在矿体与采空区之间形成垂直隔离圈的方法
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摘要
the invention относитс to mountain промети and m. b. used in the design of ore deposits with the establishment of space systems development твердеющими смес ми. the purpose of reducing the cost of th
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