该文讨论了以细胞元模型为基础的语义特征造型技术。
This paper discusses semantic feature modeling based on cellular model.
特征造型技术是新一代CAD系统的关键技术，是产品模型技术的核心。
Feature modeling is the key technique in the new CAD system, it is the core technique of product model.
面向钣金件的冲切加工，提出了将钣金零件制造的经验知识与专业技术融入特征造型过程的方法。
A method oriented punch process is presented which blends experimental knowledge and professional skills into the procedure of feature modeling.
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