1) tong cylinder
背钳液缸
1.
This paper presents the structure of positioning pin of VARCO TDS11SA top drive and tong cylinder and the practical application.
文章从VARCO TDS-11SA型电动顶驱定位销和背钳液缸的结构原理出发,结合现场使用实际,探讨了该类型顶驱定位销和背钳液缸故障的诊断技术,对于现场故障的快速诊断,具有积极意义。
2) back-ups
背钳
3) back-up attachment
背钳附件
5) hydraulic tong
液压钳
1.
The author analyzes the impacts on tubing thread linking intensity of hydraulic tong with the finite element method,the Von Mises and contact pressure distributes of casing thread liking in condition of different holding position for backup tong have been obtained,and he puts forward the technological transformation measures of hydraulic holding system,designs a three-plate-style-tong-door.
采用有限元方法分析了液压钳对油管螺纹联接强度的影响,得到了背钳在不同夹持位置时油管螺纹联接的等效应力和接触应力分布,提出了液压钳夹紧结构的技术改进措施,设计出一种新型的三腭板钳口结构。
6) water pump pliers
液压卡钳
补充资料：钳钳
1.妄语貌。
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