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1·A novel drill tool threaded connection stress relief groove is proposed in the paper.

减少连接螺纹弯曲应力可以延长钻具连接螺纹的疲劳寿命。

2·To hold one end of a threaded connection while the other is turned to make up the joint.

固定螺纹连接部位的一端，以便在转动另一端时上紧螺纹。

3·Tightening torque is one of the main factors that affect the connection quality in threaded connections.

油套管联接过程中，拧紧扭矩是影响油套管联接质量的主要因素之一。

4·Therefore, the threaded connection between both parts (1, 2) presents a gap (3) that varies in a non-linear manner.

因此，两个部件(1,2)之间的螺纹连接具有以非线性方式变化的间隙(3)。

5·The force of the explosion enlarges the female (outer) thread enough that the threaded connection unscrews instantly.

爆炸所产生的力使母扣扩大，足以使丝扣连接处瞬时松开。

6·Looseproof technique of the threaded connection is the basic guarantee for the reliable work of the automatic production equipments.

螺纹连接防松技术是自动生产设备可靠工作的基本保证。

7·The common M8 threaded connection permits a direct assembly with nearly all existing measuring heads, whether manually operated or motor driven.

它使用通用M8螺纹连接，因而可适用于现有的大部分的手动或自动测头。

8·The main causes is analysed for looseness of the threaded connection on pumping unit crank pin and the corresponding preventive measures are proposed.

文章介绍了多种螺纹联接的预紧力控制方法和防松措施，从多方面针对性的阐述了解决螺纹联接质量的方法。

9·According to connection method classification (1) threaded connection valves: valve with internal thread or external thread, and pipe thread connection.

按连接方法分类(1)螺纹连接阀门：阀体带有内螺纹或外螺纹，与管道螺纹连接。

10·In order to facilitate the installation and removal of threaded connection valves, piping system at the appropriate location can be used on pipe joints.

为了便于安装和拆卸螺纹连接的阀门，在管路系统的适当位置上可用管接头。