Solid modeling techniques with precise NURBS surfaces and form features are studied to meet the needs of product modeling in a CIM and concurrent engineering environment.

针对CIM和并行工程的产品建模需要，探讨了实体造型的两种新途径。

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According to the principles of geometry modeling and solid molding techniques, the structural modeling is established by the aspects of structure and function.

根据几何建模原理以及实体造型技术，从结构和功能上进行了结构建模的构架。

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