drilling, boring meaning in English

钻孔

Modular units for machine tool construction . multi - spindle heads . drilling , boring and tapping templates . general
机床构造标准部件.多轴头.钻孔，镗孔，攻螺纹防护装置.概论
The results of the engineering practice showed that , in the geological conditions suitable for boring with traditional percussion drills , boring with percussion drills in conjunction with post grouting technique can effectively solve the problem of the large amount of dreg deposited at the bottom of the bore , thus reducing the settlement and improving the bearing capacity of the foundation piles
工程结果表明，在适宜选用传统冲击钻机成孔的地质条件下，采用后压浆技术与冲击钻机成孔相结合的施工方法能有效地解决孔底沉渣量过大的难题，减少沉降量，提高基桩承载力。