- n阶曲线
- n阶等价
- n阶线性常微分方程
- n阶线性方程的奇点
- n饱和赋值
- n高度
- (n，ε)分离集
- (n，ε)支架集
- object
- object
- object
- object concept
- objective coordination
- objective function
- object of higher type
- object-oriented analysis
- object-oriented database system
- object-oriented design
- object-oriented language
- object-oriented programming
- oblique angle
- oblique angled spherical triangle
- oblique bend of beam
- oblique circular cone
- oblique circular cone