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sublevel caving method with sill pillar
释义
sublevel caving method with sill pillar
Encyclopedia
工学
阶段崩落采矿法
释
sublevel caving method with sill pillar
有底柱分段崩落采矿法
将阶段划分为若干个分段,在每个分段下部设有出矿专用的底部结构,矿石按分段自上而下逐段依次进行回采的采矿方法。又称有底部结构的分段崩落采矿法。
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