爆破孔钻机 shot hole drill
水下钻孔爆破 underwater drilling blast ; borehole sub-explode ; Underwater Hole Blasting ; underwater drilling and blasting
钻孔爆破船 rock drill barge
隧洞钻孔爆破法 tunnel blasting method by drilling ; drilling and blasting method
钻孔爆破 drilling blasting ; drilling-and-blasting
爆破孔钻头 rob bit
潜水钻孔爆破 drilling blasting by diver operation
水上作业平台钻孔爆破 drilling blasting on floating platforms
在绢云母石英片岩中开挖隧洞,使用多臂钻造孔爆破,出现钻孔有规律的弯曲现象,影响了钻爆速度和成洞质量。
When we dig a tunnel in sericite quartz-schist with dobby drills, regular bending of the boreholes appears, which affects drilling speed and the borehole quality.
在钻爆法施工凿岩工程中,潜孔凿岩钻具的使用量呈上升趋势,特别是高风压潜孔凿岩钻具的产品类型不断增加。
During rock projects with drilling-Masting method, there is an escalating trend of the use of downhole rock drilling tools.
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