“room-and-pillar mining with subsequent backfill”的概念、定义、翻译、参考文献-科学参考

单词	room-and-pillar mining with subsequent backfill
释义	room-and-pillar mining with subsequent backfill Encyclopedia 工学充填采矿法释 room-and-pillar mining with subsequent backfill房柱采矿嗣后充填法用房柱法进行矿石回采，并用充填料一次性充填采空区以支撑围岩，为间柱或周围采场的回采创造条件的采矿方法。
随便看	Tun Tian Du Wei tuntian field officer tuntian of Eight Banners tuntian of prisoners Tunuunik crater Tunxi Qu Tuoba Gui Tuoba Liwei Tuoba Shiyijian， the Sovereign in tribal stages of Northern Wei Dynasty Tuoba Sigong Tuoba Xianbei Tuoba Yilu Tuobuxiuer Tuo Huan Tuoji Dao Tuolin Temple Tuomari Nurmio Tuo Musi tuong Tuoning Liedao Tuoshan Caves Tuoshan grottoes Tuoshigan River Tuosu Hu Tuotuo He

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