When you turn the steering wheel, the gear spins moving the rack.
当转动转向盘时，齿轮即转动，而齿条就移动。
2
Grinding wheel for the rotating main movement, workbench as a vertical reciprocating motion, grinding wheelrack for intermittent movement into the vertical and horizontal feed movement.
砂轮作旋转主运动，工作台作纵向往复运动，砂轮架作间歇的竖直切入运动和横向进给运动。
3
Rotating table for the grinding wheel for the rotating main movement circular week for sports, grinding wheelrack for intermittent movement of vertical cutting.