open chamber blasting

• 硐室爆破

open chamber blasting的用法和样例：

例句

1. The paper introduces the method for determining resonable chamber blastingparameters by the blasting funnel test in Yugou Limestone Mine.
   介绍了峪沟石灰石矿的硐室爆破中通过爆破漏斗试验确定合理的硐室爆破参数的方法。
2. The disign method and features of coyote blasting in quarrying rockfill material for the Doulingzi hydro power project are described.
   介绍了陡岭子水电工程堆石料采用硐室爆破开采的设计方法和特点。