underground method
... 井下储仓：underground bunker 井下采矿法：underground method 井下爆破材料库：powder pocket ...
基于114个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
青铜沟汞锑矿为充分开采井下资源，选择采用分段空场嗣后充填采矿法回采550~600 m中段的部分残矿体。
To fully exploit the resources, Qingtonggou Mercury-antimony Mine adopts the sublevel open stoping with delayed filling to recover the remanent ore-body at the medium stage of 550~600 m.
youdao
应用推荐
模块上移
模块下移
不移动