本文简要介绍了深孔松动微差控制爆破技术。

Short delay controlled blasting technology for deep hole loose is presented in this paper.

youdao

为提高炮采面块煤率 ，提出了松动预裂微差爆破的落煤方案 ，并对布孔参数和爆破参数进行了调整。

To increase lump coal ratio in stopes, a scheme is put forward for coal falling by loose pre-shearing millisecond blasting, and hole arrangement parameters and blasting parameters are adjusted.

youdao