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阶段空场嗣后充填采矿法
释义
阶段空场嗣后充填采矿法
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工学
分段充填采矿法
释
stage open stoping with subsequent backfill
阶段空场嗣后充填采矿法
用阶段空场法回采矿房或矿柱,并用充填料一次性充填采空区支撑围岩,为间柱或周围采场的回采创造条件的采矿方法。
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Urban environmental management
urban environmental protection
urban environmental quality
urban environment economy
urban environment problems in China
Urban Ethnic Work Regulations
urban expansion
urban expressway traffic control
urban external transport system
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urban fire safety layout
urban flood control
urban flood intersecting ditch
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urban forest planning and design
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urban functional
urban function and type of urban function in China
urban function developed in parallel
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