deep hole drilling meaning in English

深孔钻孔

Utility vibration cutting ultrasonic vibration mini - deep hole drilling
超声振动钻削小深孔工艺及装备
Multi - spindle deep hole drilling machine
多轴深孔钻床
Medical equipment - artificial hollow bones , high precision parts deep hole drilling
医疗器材?人造骨中空孔、精密零件深孔加工
Various deviation surveying , preventing and controlling systems used for continental scientific drilling and deep hole drilling in crystalline rock are collected and summed
收集和总结了主要科学钻探项目和结晶岩深孔取心钻探项目采用的钻孔测斜、防斜和纠(造)斜系统。