Well, there's also angular momentum, which is equal to an object's moment of inertia times its angular velocity.

那么还有角动量，等于 因为物体的惯性矩乘以它的角速度。

So, the kinetic energy of an object's rotational motion is just half of its moment of inertia, times its angular velocity squared.

所以物体旋转运动的动能是 惯性矩的一半乘以其角速度的平方。