摘要
本文共由三部分组成（一）以近30年的CAD技术发展史为主线，概述了各个阶段CAD技术的重大进展以及技术特点；（二）介绍当前主流的CAD基础技术理论，并对不同流派的造型技术进行简析及比较；（三）就用户共同关注的CAD／CAE／CAM系统建设问题，介绍汽车工业近年来的选型取向。
This article is a series topics, including three parts totally. (l ) Hold the 30 years' CAD technology developmenthistory as the main c ines, summarize the important technical evolving and features at every stage; (2) Introducethe current mainstr earn modeling technology and give the analysis and comparison; (3) For the users concernedquestions that how to establish their CAD / CAE / CAM system, introduce the system selection trend of the automotivegiants recently.
