“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	basic structure basic subgroup basic surface basic surgical clamp basic surgical knife basic surgical needle & hook basic surgical operating instrument basic surgical scissors basic surgical tweezer & clip basic symbol basic system of periods basic technique of classical ballet basic tensor basic theorem of electromagnetic field basic theorems in elastodynamics basic theories of rock mechanics basic theory of broadcast basic theory of safety management basic theory of traditional Chinese medicine basic theory of traditional chinese veterinary medicine basic tillage basic tone basic-tone tree species basic traffic data survey basic traffic volume

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