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

单词	room-and-pillar mining method
释义	room-and-pillar mining method Encyclopedia 工学房柱采矿法释 room-and-pillar mining method房柱采矿法矿房回采过程中靠围岩和留下的规则连续矿柱或间柱来维护采场稳定性的空场采矿法。简称房柱法。
随便看	equivalent stress equivalent structures equivalent summation methods equivalent system equivalent systems of forces equivalent temperature equivalent term equivalent thickness equivalent torque equivalent transformation equivalent transformation between sources equivalent uranium content and equivalent thorium content equivalent valuations equivalent viscosity equivalent voltage source theorem equivalent water height equivalent weight equivalent whole numbers Equivalent Width equivalent width equivalent écart equi valued boundary value problem equi-valued boundary value problem equivariance equivariance property

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