peripheral vent

用法例句

To solve the problem in driving of a drift with peripheral hole smooth blasting,the air-deck charge in peripheral hole smooth blasting and its improvement on the detonation mode have been applied,and better blasting effect has been obtained,The practical application has proved that the technique is simple in operation,low cost in blasting,very profitable and valuable in extended application.

针对某巷道掘进周边孔光面爆破中出现的问题,应用空气间隔装药光面爆破技术及其对炸药传爆方式的改进,最终取得了比较好的爆破效果。

Tunnel smooth blasting can effectively control blasting action of peripheral holes\' explosive,reduce disturbance to surrounding rock.

隧洞光面爆破能有效地控制周边孔炸药的爆破作用,减少对围岩的扰动。