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小测验：选择正确的单词
- 论坛新贴
quadric ['kwɔdrik]
基本释义
- a. 二次的
n. 二次曲面
常用短语
- quadric surface
二次面，二次曲面
- quadric surface
英英解释
1个名词解释
- a curve or surface whose equation (in Cartesian coordinates) is of the second degree
[同] quadric, quadric surface
- a curve or surface whose equation (in Cartesian coordinates) is of the second degree