deep borehole blasting是什么意思 deep borehole blasting怎么读
deep borehole blasting的相关资料
deep borehole blasting的用法和样例
- Large-diameter longhole blasting was used to excavate soil-rock in some engineering project.
某工程的土石方开挖采用大直径深孔爆破方式。 - The blasting technique of vertically parallel and dense bunch longhole is a new ore breaking technology.
垂直平行密集束状深孔爆破技术是一种新的崩矿技术。
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