momentum ellipsoid的用法和樣例：
例句
- In this way the sphere is transformed into an ellipsoid.
於是球體變成為橢球體。 - In this paper,Isoperimetric inquality for Sphere and Ellipsoid is discussed.And the Isoperimetric inequality of some region satisfying certain conditions is given.
本文討論了球面和橢球面上的等周不等式，給出了球面與橢球面上滿足一定條件的區域的等周不等式。
