惯量

例句：

1. 1. The gravitational constant is a fundamental constant of the universe.
   万有引力常数是宇宙的基本常数。
2. 2. The mass moment of inertia of an object determines its rotational behavior.
   物体的惯性矩决定了其旋转行为。
3. 3. The angular momentum of the system is equal to the product of the moment of inertiaand the angular velocity.
   系统的角动量等于惯性矩与角速度的乘积。