In this paper, a new mining technique of mine-Deep hole blasting under water pressure is presented.

介绍了一种矿山开采新技术—深孔水压爆破。

youdao

In this paper, a new mining technique of mine-Deep hole blasting under water pressure is presented.

介绍了一种矿山开采新技术—深孔水压爆破。

youdao