“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	ethyl alcohol poisoning ethylaluminium dichloride ethylamine ethylated gasoline ethylation ethyl benzene ethylbenzene ethyl bromide ethyl carbamate ethyl chloride ethyl cyanide ethyl dichloroaluminum ethylene ethylene-acrylic copolymer ethylene alkaline residue ethylene carbonate ethylene chlorohyrin ethylenediamine ethylenediamine poisoning ethylene diamine tetraacetic acid ethylenediamine tetraacetic acid ethylenediaminetetraacetic acid ethylenediaminetetraacetic acid (EDTA) ethylene dibromide ethylene gaseous polymerization process

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