surface mining method
这对研究矿山露天地下联合开采过程中的露天矿边坡稳定性、地下采矿方法和开采顺序等有重要的意义。
It is of important significance to the study of the open pit slope stability, underground mining method and mining sequence in open-pit and underground combined mining.
youdao
应用推荐
模块上移
模块下移
不移动