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bottom construction of stope
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bottom construction of stope
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bottom construction of stope
采场底部结构
位于拉底水平和出矿水平之间的受矿(聚矿)巷道、出矿(放矿)巷道和各种小井(漏斗)的总称。是采场设计的重要结构之一,回采崩落矿石进入运输水平的咽喉。
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chemical decladding; chemical decanning
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