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
浅孔留矿法对桓仁矿北岔区的低品位矿
表外矿进行综合回收的可行性。
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.
论证浅孔留矿法对桓仁矿北岔区的低品位矿表外矿进行综合回收的可行性。
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