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本文介绍双矿块留矿法采场矿柱的回采方法,用此种方法提高了矿石回收率。东科温拉德矿床埋藏于科温拉德地区的黑云母花岗岩中。矿脉为急倾斜
This paper introduces the mining method of double ore block retention method mining stope, using this method to improve ore recovery. The East Covulant deposit is buried in biotite granites in the Co Wradlar area. The veins are sharply inclined