ellipsoidal of inertia

例句：

1. 1.The ellipsoid of inertia is a mathematical concept that describes the shape of an object's center of mass.
   惯性椭球体是一个数学概念，它描述了物体质心的形状。
2. 2.In physics, the ellipsoid of inertia is used to model the motion of objects with rotational symmetry.
   在物理学中，惯性椭球体被用来模拟具有旋转对称性的物体的运动。
3. 3. The ellipsoid of inertia is a key component in the design of spacecraft and satellites, as it affects their stability and control systems.
   惯性椭球体是航天器和卫星设计的关键组成部分，因为它影响它们的稳定和控制系统。