pellet rock
常見例句
- Using some engineering examples, it is showed that a crushing explosion has more advantage and better economical results in a exposure certain pellet proportion rock material exploitation.
利用工程實(shí)例說明在露天開採級(jí)配石料爆破中，擠壓爆破技術(shù)具有良好的技術(shù)經(jīng)濟(jì)性。 返回 pellet rock