达尔文椭球

Darwin ellipsoid的用法和样例：

例句

In this way the sphere is transformed into an ellipsoid.于是球体变成为椭球体。
In this paper,Isoperimetric inquality for Sphere and Ellipsoid is discussed.And the Isoperimetric inequality of some region satisfying certain conditions is given.本文讨论了球面和椭球面上的等周不等式，给出了球面与椭球面上满足一定条件的区域的等周不等式。

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