The backfilling methods with refuse were beneficial to improving mining rate of resource and prolonging mine life.
提出了3种矸石充填开采对提高资源采出率、延长矿井服务年限的重大意义及推广应用价值。
The backfilling methods with refuse were beneficial to improving mining rate of resource and prolonging mine life.
提出了3种矸石充填开采对提高资源采出率、延长矿井服务年限的重大意义及推广应用价值。
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