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[会议论文] 作者:Dakota Faulkner,Jinrong Kevin Ma,John C.Stankus, 来源:33届国际采矿岩层控制会议(中国) 年份:2014
Unexpected roof fails often occur in the entries or intersections of active mining sections in underground mines.For large roof fails (greater than 20 ft in height), it becomes dangerous and impractic...
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