“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	twenty-five yin-yang constitutions Twenty-four Agencies twenty-four divisions Twenty-Four Eyes twenty-four fortnightly periods twenty-four main points of wushu Twenty-four Scholars Society twenty-four solar terms Twenty-four Styles of Painting twenty-one centimeter line twenty-one centimeter radiation "Twenty-one Sheets" From Switzer Land Twenty poems about drinking Twenty Poems of Dunhuang twenty-seven-day recurrence effect Twenty Statements Test Twenty-two provinces twenty-vertex entropy constant Twi twi- twice twice differentiable function twice-exceptional children twice firing twiddle

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