所绘交线与理论形状的投影作图十分接近，可以满足工程制图的要求。
The drawn intersecting line is similar to the shape of its theoretical projection and can satisfy the requirement of engineering drawings.
本文通过出口国外的制冰机设计研制的实例，介绍了三维建模与工程制图技术在产品设计中的应用。
In the article, a design example of an export ice machine is given to describe the application of 3d modeling and engineering drawing technique to product design.
针对工程制图教学的研究，介绍了MCAI技术在工程制图习题库中的设计与开发技术。
In view of the study of the engineering drawing teaching, the author focuses on the application and development of MCAI technology in engineering drawing exercise base.
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