“downward drift stoping with backfill”的概念、定义、翻译、参考文献-科学参考

单词	downward drift stoping with backfill
释义	downward drift stoping with backfill Encyclopedia 工学上向分层充填采矿法释 downward drift stoping with backfill下向进路充填法将矿块沿竖直方向划分为若干分层，由上而下逐层以巷道进路的方式进行回采并充填的采矿方法。
随便看	C-analytic space canard rotor/wing aircraft canaries Canaries current canary Canary Basin Canary Islanders Canary Islands canavanine Canberra can-can cancel an order cancellability cancellable element cancellation cancellation amplifier cancellation group cancellation groupoid cancellation law cancellation law for addition cancellation law for multiplication cancellation of collection registration cancellation of handles cancellation of negotiable instrument cancellation of singularities

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