longhole

常見例句

Large-diameter longhole blasting was used to excavate soil-rock in some engineering project.
某工程的土石方開挖采用大直徑深孔爆破方式。
This paper briefly intro-duced the practice of longhole blast shaft-formirg method for blind shaft sinking in Tongshan Copper Mine.
本文簡要介紹了深孔爆破成井法在銅山銅礦盲豎井掘進中的實踐。
The blasting technique of vertically parallel and dense bunch longhole is a new ore breaking technology.
垂直平行密集束狀深孔爆破技術(shù)是一種新的崩礦技術(shù)。
In recent years,severe rock fall occur in stopes with large-diameter longhole mining in Tonglushan Copper-iron Mine.
近年來,銅綠山銅鐵礦深孔采場出現(xiàn)了嚴(yán)重的垮塌。
The sectional cutting method is effectively applied to longhole raising but less applied to tunnel heading.
分段掏槽法已在深孔爆破掘進天井運用中取得一定效果，而在平巷掘進中運用卻未予以足夠的重視和研究。
Longhole shock controlled blasting is an important method which preventes coal andgas ouburst in tunnelling.
本論文深孔松動控制爆破的成縫機理進行了總結(jié)和分析。