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yan xiang kuai su jue jin de gai jin gong yi
Pages: 20-21
Year: Issue:  1
Journal: Coal Mine Modernization

Abstract:  南屯煤矿经过多年的开采,厚煤层储量越来越少,工作面接续变得异常紧张,为确保采掘接替合理,提高单进,矿领导决定在-432m水平二部皮带巷组织开展创水平活动.
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