“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	Owicki-Gries逻辑 OWL Owl Cluster Owl Nebula OWL-S owl-shaped bronze vessel owl-tail ridge ornament owner owner of cargo owner of copyright ownership ownership of advertising ownership of forest resources ownership of means of production in socialist society ownership of natural resources ownership of sports event ownership of trustees ownership stamp ownership structure ownership survey ownership verification and demarcation of water conservancy project own-rooted seedling O. W. Richardson O. W. Richardson, 1879—1959 OWSpace

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