三英里之外的采石场进行了爆破作业。
Three miles away there was a salvo of blasting in the quarry.
大爆破作业过程中，起爆系统在整个爆破工艺中是一个重要的组成部份。
The detonation system plays an important part in the whole demolition technology in the process of demolition operation.
通过对爆破作业安全管理的分析，提出了严密的安全管理体系是顺利完成爆破取缔土炼油点工作的保证。
By analyzing the safety management of blasting, it is pointed out that the strict safety management system is the guarantee of demolishing lawless oil refineries by blasting successfully.
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