投射力量之大小，可在控制面板上的变频器键盘调整适当的回转数。
Projection of force size, in the control panel on the appropriate frequency converter keyboard Rotary few adjustments.
起拱机调整机构计数器转数的大小直接影响生产出的拱型槽板曲率半径大小。
Rotation counts of arch raising machine's counter influence directly curvatures of manufactured arched trough plate.
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