钻具接头 meaning in Chinese
drilling tool substitute
tool joint
Examples
- Verification regulation of master gage for rotary shouldered connections thread , casing round thread and tubing thread
石油钻具接头螺纹套管圆螺纹和油管螺纹校对量规检定规程 - Calibration specification for working gauge of rotary shouldered connections , round thread casing and tubing
石油钻具接头螺纹工作量规圆螺纹套管工作量规和油管螺纹工作量规校准规范