然后手动旋紧螺母但保证旋杆能上下移动。

Then hand-tighten the pivot rod’s retaining nut enough that the rod can still move up and down.

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摘要：本系统采用一级齿轮减速，带动丝杠传动，通过螺母的直线移动带动工作台运动。

Abstract: the system USES a gear reducer, drives the lead screw drive, And nut straight through mobile workbench movement.

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拨动手轮时，螺母连接板带动悬挂式埋弧焊接机头与焊丝盘支架轴向移动。

When a hand wheel is toggled, the nut connecting plate drives the hand piece of the suspended type submerged arc welding machine and a wire reel bracket to move axially.

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