几何约束求解是基于特征设计系统的核心算法之一。
Geometric constraint satisfaction is one of the kernel algorithms in feature based design system.
基于特征设计是近年来在CAD／CAM集成技术研究中的一种有效解决方法。
The feature-based design is an efficient method in the research of the integrated CAD/CAM in recent years.
可见图像分割、对象特征提取、基于特征设计识别算法，是图像对象识别的关键问题。
Firstly segment the object from images, then extract the features of the object, and finally identify the object based on the features.
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