“spontaneous caving method”的概念、定义、翻译、参考文献-科学参考

单词	spontaneous caving method
释义	spontaneous caving method Encyclopedia 工学阶段崩落采矿法释 spontaneous caving method自然崩落采矿法在位于阶段水平矿块的底部开展大面积的拉底，在侧部用巷道和深孔爆破切帮后，矿石在阶段的整个高度上借自重与地压作用逐渐使矿石自然崩落并破碎成适当块度的采矿方法。
随便看	China-Republic of Mali Friendship Treaty China Research Hospital Association China Research Society On Semantics and Etymology China returnable satellite China Rhododendron Garden in Wuxi China Risk Oriented Solvency System China road traffic accident rescue China Road Transport Association chinaroot greenbrier rhizome China rural electrification China Rural Special Technology Association，CRSTA China Rural Survey China Rural Water and Hydropower China-Russia Crude Oil Pipeline China-Russia News Agency China Safety Science Journal China's Agenda 21 China's agricultural extension planning system China's agricultural tax China's ancient book advertising ChinaSat 6A China Satellite Television（CSTV） China savin China School Physical Education China School Sports Federation

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