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Computer use of vertical feed system for open-loop control.
利用微机对纵进给系统进行开环控制。
It includes vertical feed, horizontal feed mechanism design, and servo motor, ball screw options, and other tasks.
它主要包括纵向进给机构，横向进给机构的设计，及伺服电机，滚珠丝杠的选择等任务。
The vertical feed fly saw, equiped on most straight welding pipe sets, can not be suitable to cut square shaped pipes because of serious deformation on the cut face.
当前一些直缝焊管机组所配备的垂直进锯型飞锯因易造成切断端面严重变形，不适合锯切正位生产的方矩型类管材。
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