Changing room fender stoping into single-stage continuous stoping is available as it results in simplified mining operation,contented security and economic benifit.
英
美
释义
将矿房、矿柱两步回采工艺改变为一步连续回采工艺,简化了采矿作业,提高了安全性和经济效益,是行之有效的。
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