When the swing or shaking direction is parallel to the dial, the influence is biggest;
当摆动或晃动方向平行于表盘时，影响是最大的；
Turn it, while keeping it parallel, until the hour hand is pointing in the direction of the sun.
将时针转向太阳的方位。
If a torque is applied to the disk in such a fashion that the axis of the torque is the same as that of rotation of the disk, the direction of the former will be parallel to AB.
如果力矩是这样地作用于一圆盘上，即力矩的轴与圆盘的旋转轴方向一致，则力矩的方向与ab线平行。
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