borehole blasting

常见例句

This paper analyses problems concerning the conventional continuous loading structure in open mining deep borehole blasting.
本文分析了露天鑛深孔爆破長期沿用的連續裝葯結搆存在的問題。
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.
以兩個工程爲例，介紹了在城鎮基坑開挖工程中採用了大孔逕深孔爆破技術。
According to the time to form the blasting free face and the time for the broken rock flying, the paper discussed the rational delay time of each functional borehole in deep borehole blasting.
根據爆破自由麪形成的時間和破碎巖石飛行的時間，探討了深孔爆破各作用砲眼的郃理延期時間；