• 阐述了露天-地下联合采矿概念及其与传统的露天-地下联合开采区别

    This paper presents the concept of surface-underground combined mining method and discusses the difference from combined open-pit and underground mining.

    youdao

  • 关联度计算表明采矿适应性排序为:露天开采分段崩落、阶段

    The gray relation degree indicates that the series for adaptability of every mining method are surface mining, sublevel caving mining, block stop mining etc;

    youdao

  • 关联度计算表明采矿适应性排序为:露天开采分段崩落、阶段

    The gray relation degree indicates that the series for adaptability of every mining method are surface mining, sublevel caving mining, block stop mining etc;

    youdao

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