“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	spiral structure spiral surface spiral test spiral tracer spiral track spiral vessel spiral water wall tube spiral wave spiral waves in excitable system spiral zooid spiramen spiramycin spirane spiraperture spiraster spiratron spire spiric curve spiric section Spiridon Dmitrievich Drozhin spirilla spirit spirit and essence theory Spirit and Opportunity Spirit Cave

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