The feasibility of which short-hole shrinkage method is used for mining of low-grade and submarginal ores in Huanren Mine is demonstrated in this paper.
论证了采用浅孔留矿法对桓仁矿北岔区的低品位矿
外矿进行综合回收的可行性。
近边缘的,在边缘以下的,收益标准以下的The feasibility of which short-hole shrinkage method is used for mining of low-grade and submarginal ores in Huanren Mine is demonstrated in this paper.
论证了采用浅孔留矿法对桓仁矿北岔区的低品位矿外矿进行综合回收的可行性。
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