1) drill collar lifting nipple
钻铤提升短节
2) short bent collar
造斜钻铤短节
3) lifting sub
提升短节
4) SMDC short magnetic drill collar
短无磁钻铤
5) short collar measurement method
短钻铤测量法
6) Drill collar
钻铤
1.
Research on a new stress relief groove of drill collar threaded connections;
新型石油钻铤联接螺纹减应力区的研究
2.
Measuring residual stress by blind-hole method for the box connection of Ф158.8 mm drill collar;
用盲孔法测量Ф158.8mm钻铤内螺纹端残余应力
3.
Dynamic load analysis of the drill collar during jarring operations by the FEM
震击作用时钻铤上动载荷的有限元分析
补充资料：金铤
1.犹金锭。熔铸成条块等固定形状的黄金﹐其重数两﹑数十两不等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条