“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	natural topology natural transformation natural trihedron natural unit natural unit system natural uranium natural uranium exists in the form of water natural uranium (NU) natural user interface natural user interface, NUI natural variability natural vegetation natural ventilation natural ventilation of swine building natural vibration natural water natural water cycle system natural water quality natural weighting natural wetland natural wetland microbes Natural White Desert Protected Area natural width natural width of gamma ray spectrum natural width of spectral line

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