drill collar groove的意思|示意
美 / dril ˈkɔlə ɡru:v /
英 / drɪl ˈkɑlɚ ɡruv /
钻铤卸荷槽
drill collar groove相关例句
After processing LET thread, stress groove and double shoulder connection for the NC35 thread of Drill Collar in 43/4 inch, torsion tests were done.
4英寸）钻铤NC35螺纹加工LE螺纹、应力槽、双台肩后进行了实物抗扭性能试验，证实双台肩钻铤具有很好的抗扭性能。