二次曲面

absolute quadric

绝对二次曲面

absolute parallelism 绝对平行性 | absolute quadric 绝对二次曲面 | absolute ramification index 绝对分歧指数

bitangent quadrics

双切二次曲面

二重切面 bitangent plane | 双切二次曲面 bitangent quadrics | 双切曲线 bitangential curve

central quadric

有心二次曲面

central projection 中心射影 | central quadric 有心二次曲面 | central series 中心群列

central quadric surfase

有心二次曲面

1405,"central projection","中心射影" | 1406,"central quadric surfase","有心二次曲面" | 1407,"central ray","中心射线"

characteristic conoid

特征锥体;特征二次曲面

特征锥;特征锥面 characteristic cone | 特征锥体;特征二次曲面 characteristic conoid | 特征常数;特征值 characteristic constant

conjugate line in a quadric

二次曲面的共轭直线

共轭核 conjugate kernel | 二次曲面的共轭直线 conjugate line in a quadric | 共轭线性空间 conjugate linear space

elliptic quadratic surface

椭圆型二次曲面

椭圆直射 elliptic projevtivity | 椭圆型二次曲面 elliptic quadratic surface | 椭圆型Riemann曲面 elliptic Riemann surface

hyperquadric

超二次曲面

hyperplane section 超平面截面 | hyperquadric 超二次曲面 | hyperreal numbers 超实数

quadric surface fitting

二次曲面

曲面拟和:Surface fitting. | 二次曲面:quadric surface fitting | 表面成像:Surface fitting

degenerate surface of the second order

退化二次曲面

degenerate conic sections 退化圆锥曲线 | degenerate surface of the second order 退化二次曲面 | degree 度,次,次数,阶,级

overturned：倒转的

倒转的 inverted | 倒转的 overturned | 倒转点 inversion point

remind sb of/about sth：使某人想起

9. on the go 忙碌, (整天)奔忙 | remind sb. of / about sth. 使某人想起... | have fun 取乐