“open stope mining method”的概念、定义、翻译、参考文献-科学参考

单词	open stope mining method
释义	open stope mining method Encyclopedia 工学空场采矿法释 open stope mining method空场采矿法在回采过程中将矿块划分为矿房和矿柱，分两步骤回采，在回采矿房过程中采场以敞空方式存在，主要靠矿岩本身强度和矿柱支撑能力维护采场稳定性的采矿方法。又称自然支护采矿法。
随便看	explosion limit explosion of pulverized coal preparation system explosion power explosion power index explosion-proof explosion-proof and pressure relief devices explosion-proof blanket explosion-proof design explosion proof device explosion-proof electric apparatus explosion-proof instrument explosion-proof motor explosion-proof static eliminator for human body explosion-proof tools explosion-proof wall explosion-resistant explosion-safe explosion safety assessment explosion safety/protection explosions in air explosion suppression explosion time explosion turbine explosion venting explosion wave

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