离心率

例句：

1. 1. The centrifugal force is the force that acts in a rotating reference frame.
   离心力是作用在旋转参考系中的力。
2. 2. The centrifugal acceleration is the rate at which an object moves away from the center of rotation.
   离心加速度是物体远离旋转中心的速度。
3. 3.In physics, the centrifugal force is used to describe the force that opposes the centripetal force when an object is moving in a circular motion.
   在物理学中，离心力用来描述当物体在圆周运动中时，与向心力相抗衡的力。