The system consists of NC machine, welding control device, welding head, etc.

此系统由数控主机、焊接自动控制装置、焊接机头等组成。

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The utility model discloses an exclusive used welding head for dismounting integrate plates, which belongs to a hardware tool.

本实用新型是一种拆卸集成片专用烙铁头，属于五金工具。

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A self designed welding head is described. The welding head can divide one torch into two equally and the two focuses are in series along the weld.

通过利用自行研制的分束焊接头将一束激光分为能量相当的两束激光，在沿焊缝方向上串联产生了两个焦点。

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So specialised, in fact, that Bob Richwine, the head welding teacher at the college, said he had never heard of them, and so difficult that only experienced welders could attempt them.

ECONOMIST: Industrial job creation is a grind