“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	closure of Huayuankou breach closure of Huzi breach Closure of Libyan Embassy in Niger closure of Panama Seaway closure operation closure operator closure ordinal closure phase closure phase imaging technique closure-preserving covering closure problem closure property closure relation closure space closure spectrum closure system Closure temperature closure theorem cloth animation cloth art ornaments cloth art product cloth beam clothes clothes hanging transmission production system clothes quick response production system

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