deep borehole blasting 深孔控制爆破
underwater borehole blasting 水下炮孔爆破
deep borehole control blasting 深孔控制爆破
protecting borehole wall blasting 护壁爆破
blasting borehole stemming 炮孔堵塞
medium deep borehole smooth blasting 中深孔光面爆破
Besides some measures for reducing BYof borehole blasting application in open pits are provided here.
提出了露天矿深孔爆破中降低大块率的技术措施。给出了矿山应用的实例。
This paper analyses problems concerning the conventional continuous loading structure in open mining deep borehole blasting.
本文分析了露天矿深孔爆破长期沿用的连续装药结构存在的问题。
Taking two of projects as examples, the paper discussed the technology of large diameter borehole blasting applied in the excavation of footing groove in city.
以两个工程为例，介绍了在城镇基坑开挖工程中采用了大孔径深孔爆破技术。
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