We hold up our left hand and point our thumb in the positive direction of the axis of rotation.
We hold up our left hand and point our thumb in the positive direction of the axis of rotation.
我们握住自己的左手并且将自己的右手拇指朝向正旋转轴方向。
We hold up our left hand and point our thumb in the positive direction of the axis of rotation.
我们握住自己的左手并且将自己的右手拇指朝向正旋转轴方向。