deep-hole blasting
英
美
- blasting n.爆破；鼓风；喷砂法；气流加速运动；过载动词blast的现在分词形式.
- deep adj.深的；深刻的；深奥的；深切的adv.深深地n.深处
- hole n.洞；孔；穴；漏洞；困境v.挖洞；掘坑；进洞
- 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 new method adopted roof presupporting,deep and medium hole blasting,LHD ore removal and tailings filling.
该采矿方法采用采场预控顶技术，中深孔爆破，铲运机出矿，尾砂充填。
