钻孔装置 meaning in English

drill feed

Development of a hydraulic vibration drilling apparatus on ultra - low frequency
超低频液压振动钻孔装置的分析
Lhds laser hole drilling system
激光钻孔装置
" nuclear instrumentation - geophysical borehole instrumentation to determine rock density " density logging
核装置.测定岩石密度的地球物理钻孔装置
Standard test method for measurement of dry film thickness of thin film coil - coated systems by destructive means using a boring device
用钻孔装置破坏性测量薄膜盘绕覆层系统的干膜厚度的标准试验方法