微分几何

Those conclusions are of clear geometric significance and global property.

这些结论具有清晰的几何特征，而且属于整体微分几何性质。

Present a geometric theory for efficient and accurate localization of symmetric features.

以微分几何作为工具，阐述了对称工件定位的理论问题。

In local differential geometry, the cylindrical spiral is a very important curve.

在局部微分几何中， 圆柱螺线是很重要的一种曲线。

Knowledge of elementary algebraic topology and elementary differential geometry is recommended, but not required.

建议事先知道一些关于代数拓扑和微分几何的基本知识， 但不是必需的。