minor radius

例句：

1. 1. The minor radius of the planet is a crucial factor in its orbital stability.
   行星的次要半径是其轨道稳定性的关键因素。
2. 2. The measurement of the minor radius is essential for understanding the gravitational effects of an object.
   测量次要半径对于理解物体的引力效应至关重要。
3. 3.In this model, the minor radius represents the distance between two points on the surface of the sphere.
   在这个模型中，次要半径表示球面上两点之间的距离。