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METHOD OF CONSTRUCTING MULTILEVEL UNDERGROUND STRUCTURES FOR WORKING MINERAL DEPOSITS
METHOD OF CONSTRUCTING MULTILEVEL UNDERGROUND STRUCTURES FOR WORKING MINERAL DEPOSITS
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机译:矿床的多层次地下构造方法
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摘要
method of многоярусных.underground facilities in the design field of mineral resources, including seizing sedimentary сло ми for capacity formationthe formation of pillars in the treatment design and
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