Stresses the normal return of the mechanical spring, while the upper right corner of the screen to observe whether the triangle has a reverse action.
讲弹簧机械正常的归零作用,同时要观察屏幕右上角的三角是否有反向动作。
Stresses the normal return of the mechanical spring, while the upper right corner of the screen to observe whether the triangle has a reverse action.
讲弹簧机械正常的归零作用,同时要观察屏幕右上角的三角是否有反向动作。
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