旋转钻井设备 meaning in English
rotary drilling equipment
rotary equipment
rotary feed control
Examples
- Petroleum and natural gas industries - rotary drilling equipment - part 1 : rotary drill stem elements iso 10424 - 1 : 2004 ; english version en iso 10424 - 1 : 2004
石油和天然气工业.旋转钻井设备.第1部分:旋转钻杆元