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留矿 留矿切割槽 缩 拉回
shrink  detail>>
留矿切割槽
shrink  detail>>
留矿法
shrinkage method  detail>>
部分留矿
partial storage of ore  detail>>
残留矿床
residual deposit residualdeposit  detail>>
残留矿物
residual mineral  detail>>
留矿采矿场
shrinkage stope  detail>>
留矿采矿法
shrinkage stoping method  detail>>
留矿回采
shrinkage stoping shrinkagestoping  detail>>
留矿开采法
shrinkage method  detail>>
遗留矿柱
abandoned pillar  detail>>
残积物;残留矿床
residual(residuary)deposit  detail>>
留矿柱的采矿
pillar mining  detail>>
含多量遗留矿物的
dolimorphic  detail>>
后退式留矿开采法
retreating shrinkage  detail>>
留矿法放矿控制
shrinkage control  detail>>
留矿回采工作面
shrinkage stope  detail>>
遗留矿柱采矿法
abandoned pillars method  detail>>