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
低品位矿
表外矿进行综合回收可行性。
,在边缘
,收益标准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低品位矿表外矿进行综合回收可行性。
声明：上例句、词性分类均由互联
自动生成，部分未经过人工审核，其表达内容亦不代表本软件观点；若发现问题，欢迎向我们指正。
