“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	Big Bang big bang Big Bang chronology Big Bang cosmology big bang cosmology big-bang cosmology Big Bang model big bang model Big Bang nucleosynthesis big bang nucleosynthesis big-bang nucleosynthesis Big Bang singularity Big Bang theory big bang theory Big Bear Solar Observatory Big Bend National Park big bounce Big Brother Big Brother's Return Big Brum Theatre in Education Company Big Buddha Cave in Rongxian big category big cell big chill Big Ci'en Temple

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