circular definition

基本解释

A recursive definition is similar to a circular definition, in the sense that the definition contains a reference to the thing being defined.
递归定义与循环定义有些相似，就是函数的定义体内包含了对所定义内容的引用。一一个完全循环的定义并不会有太大用。
Through the example, we gave the pattern ask for the most value make a clever use of the definition of circular Cone bend line in this paper.
巧用圆锥曲线的定义，通过具体实例说明求最值的一些方法，对中学数学教学有积极的参考价值。
But this definition assumes that most planets have roughly circular orbits, like the Earth and most other planets in the solar system.
但这一定义的前提是，假定大多数行星以近乎圆形的轨道围绕母星运行，就像地球和太阳系其他大部分行星那样。