为了更好地加快施工进度，在打眼爆破方面要有新的突破，引进国内首台液压伞钻，大大提高了的打眼速度，效果显著。
The 1~(st) domestic hydraulic umbrella drill is therefore introduced to accelerate drilling velocity with obvious effect as a new breakthrough for drilling and blasting.
煤柱回收采用深孔爆破的方法落煤，减少工人在工作面打眼的危险。
The method of coal cutting adopts deep-hole blasting and realizes no people in the face, this decreases risk when workers are working in the face.
正在翻译，请等待…路基挖石方采用风钻和潜孔钻打眼，小型松动爆破和深孔爆破，挖掘机和装载机装碴，自卸汽车运输，推土机配合。
Subgrade excavation of rock using pneumatic drill and DTH drill Hole drilling, loose blasting in small and deep hole blasting, excavators and loaders loading ballast, dump truck, bulldozer tie.
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