A new method to extract blend surface feature is presented according to the common features of blend surface in reverse engineering.

针对反求工程中常见的过渡曲面特征，提出了一种过渡曲面特征的提取算法。

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Main contents in relation to the hybrid modeling method are discussed, and some key techniques such as quadric surface feature extraction and blend surface feature extraction are addressed in details.

讨论了混合建模方法的主要研究内容，并研究了二次曲面特征和过渡曲面特征提取。

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