【摘要】 我国制造业参与国际市场竞争,其设计方法已从传统手工绘图设计模式向计算机辅助设计模式发展,从初始阶段的二维CAD系统到大量推广三维CAD系统,文章论述了二维CAD和三维CAD的特点,并论述了三维CAD的重要性。更多还原

【Abstract】 The manufacturing industry of our country take part in the international market competetion, the method of its design is devepoping from the traditional handicraft painting to calculation support, from plane CAD to stereoscopic CAD system. The article discussed the character of plane CAD and stereosopic, and explained the importance of stereosopic CAD.更多还原