焊枪

A stepper motor is taken as driver gear and a screw-driven device as running gear in the gun to realize the stud action procedure requested by arc stud welding

焊枪的机械结构部分以步进电机为动力机构，以螺旋传动装置为运动机构主体，实现了电弧螺柱焊所需的螺柱运动过程

The strength of technology companies, well-equipped, to screw bolt welding technology research and development and testing.

北京威迪公司研制生产的螺柱焊机、焊枪系列对直径

An automatic arc welding machine for saddle joint seam on large diameter cylinders was designed and its structure,components,characteristic and working principle were discribed in this paper.

介绍了大直径筒体马鞍形接缝自动焊机的结构和工作原理，以及设计的主要特点。推导出了该系统用来控制气体保护电弧焊焊枪运动轨迹的关键部件──凸轮的形状与尺寸的计算公式：l =l′-Z′=l′- [(R2 -r2 cos2 ψ) 1/ 2 -rsinψcosα]/sinα。

A locomotive is designed to be almost indestructible — in this case, a 160-tonne construction of cast and welded steel. Each piece must be taken out by hand with blowtorches. The breakdown will happen from the top down in three steps.

这列火车头是由一百六十公吨的铸钢制造而成，每块铸钢都要用焊枪精准地拆解开来，拆解方式由上而下，分为三个步骤。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。