“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	fictitious economy fictitious economy accounting fictitious economy theory fictitious equation fictitious fluid fictitious force fictitious game fictitious graticule fictitious mean sun fictitious model fictitious moment of inertia fictitious play fictitious player fictitious star fictitious state fictitious sun fictitious time fictitious year fictive motion FID fiddle Fidelio fidelity fidelity insurance fidelity of quantum states

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