阐述特征技术基本概念，提出基于特征的箱体零件信息描述方法。
Some basic concepts about the feature technique are expounded, information description method for box part based on feature is presented.
还讨论了特征的定义、特征形面的分类以及零件信息描述体系的数据结构。
It also discussed the definition of features, group of characteristic profiles and the data structures of the describing system.
文章提出了形状特征的分类原则，并以回转体类零件为例，介绍了零件信息描述的过程。
In this paper, we designed the classification rules of surface feature, then illustrated the process of part information describing for an example of rotating parts.
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