1.
drill chuck with thread adapter

螺纹联接扳手钻夹头
2.
Key type drill chuck

GB/T6087-1993扳手钻夹头
3.
a threaded hexagonal or square-headed bolt with a nut; tightened with a wrench; used to connect metal parts.
一种带有螺母的六角形或圆头螺纹螺丝;用扳手拉紧;用于连接金属。
4.
ratchet wrench extension

手摇螺丝扳手接长节
5.
Screwed 1;Screwed 2;Screwed 3;Screwed 4

螺纹接头 1;螺纹接头 2;螺纹接头 3;螺纹接头 4
6.
Screwed Joint 1;Screwed Joint 2;Screwed Joint 3

螺纹接头 1;螺纹接头 2;螺纹接头 3
7.
Threads on rotary shouldered connections for petroleum industry

GB/T9253.1-1999石油钻杆接头螺纹
8.
Petroleum equipment--Thread gages for rotary shouldered connections

GB/T4749-1993石油钻杆接头螺纹量规
9.
Longitudinal-cracking Failure Analysis of Box

φ139.7mm钻杆内螺纹接头纵向开裂失效分析
10.
Cause Analyses of Pin Joint Fracture of 139.7 mm Heavy Weight Drill Pipe

139.7mm加重钻杆外螺纹接头断裂原因分析
11.
Failure Analysis on Tool Joint Expansion of φ88.9mm×9.35mm G105 Drill Pipe

φ88.9mm×9.35mm G105钻杆内螺纹接头胀扣失效分析
12.
Finite element analysis of the screw structure of the drill-stem junction

钻杆接头螺纹结构形式的有限元分析
13.
threaded type track bolt nut chuck

螺纹式轨道螺母夹头
14.
male and female cross

阳螺纹-阴螺纹十字接头
15.
a wrench for turning a tap to create an internal screw thread.

旋转活栓产生内螺纹的扳手。
16.
a wrench with a hook that fits over a nut or bolt head.

有一个钩子套在螺母或螺栓头的扳手。
17.
A study of the surface crack at thread root of tool joint pins by the aid of finite element method.
石油钻杆公接头螺纹牙根部表面裂纹有限元计算
18.
Jiatou wrenches, metal tools, screw manufacture, marketing.

夹头扳手、金工具、丝制造、售。