“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	network planning technique network plan review technology network politics network polymer network processor network program host network programming network promotion network propagation dynamics network protection network protocol network protocol analyzer network protocol security network pruning network psychological warfare network public network publications network public opinion network public opinion guidance network public opinion research and judgment network pyramid sales network range network real-name system network real-time kinematic positioning network reconnaissance

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