“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	principal fundamental solution principal G bundle principal G-bundle principal genus principal G-object principal graduate principal graph principal group principal groupoid principal homogeneous G-set principal homogeneous space principal homomorphism principal horizontal line of photograph principal ideal principal ideal domain principal ideal ring principal ideal theorem principal idele principal idempotent principal idempotent element principal identity principal indecomposable module principal indecomposable representation principal integral domain principal integral representation

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