On the basis of Feature Modeling and 3d Solid Geometry Modeling, with the idea of Object-Oriented Product Design, a 3d Parametric Feature Modeling Method is applied to develop manifold.
采用特征对象化的设计思想，在特征造型和3维实体几何造型的基础上，研究液压集成块的3维参数化设计方法。
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。
CSG (Constructive solid Geometry) is an important solid modeling technique.
是实体造型中一种重要表示方法。
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