So, s is actually this whole closed surface here.

那么，S实际上是这个完整的封闭曲面。

youdao

Let's say that we are given a parametric description — of a surface s.

比方说已知，曲面s的参数形式。

youdao

S is isometric to a surface of revolution.

与一个旋转曲面是等距对应的；

youdao

S is isometric to a surface of revolution.

与一个旋转曲面是等距对应的；

youdao