hyperbolic paraboloid造句

例句与造句

1. the authors show that the hyperboloid of one sheet and the hyperbolic paraboloid are ruled surfaces .
   作者证实：单叶双曲面和双曲抛物面是直线曲面。
2. It's difficult to find hyperbolic paraboloid in a sentence. 用hyperbolic paraboloid造句挺难的