“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	table of integrals table of inverse numbers table of logarithms table of natural cosines table of natural sines table of prime factors table of primes table of random numbers table of reciprocals table of sines table of square roots table of squares Table of Standard Pronunciation of Putonghua table of the moon table of trigonometric functions table of values of a function table pulsion stroke table pulsion time table runner Tables of Tribal Lineages to Supplement the History of the Yuan tablet Tablet Dedicated to Han Ren table tennies of Summer Deaflympics table tennis table tennis court

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