prolate epicycloid

例句：

1. 1. The prolate epicycloid is a mathematical objectthat can be used to describe the shapeof an ellipse.
   扁椭圆环面是一个数学对象，可以用来描述椭圆的形状。
2. 2.In astronomy, the prolateepicycloid is used to model theshape of the solar system's planets.
   在天文学中，扁椭圆环面被用来模拟太阳系行星的形状。
3. 3. Theprolate epicycloid is alsoused in computer graphics to create realistic imagesof objects with curved surfaces.
   扁椭圆环面也在计算机图形学中被用来创建具有弯曲表面的物体的真实图像。