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In this paper the engineering drawings of the existing problems in traditional teaching and the insufficiency, the computer aided teaching reform is the direction of development. Tells the story of the carrier to Flash to collect the materials, CAI courseware script writing and button, visual method is introduced, and the characteristics. Exploring process "DingZiChe lines", "set square with lines" and "arc connection geometry relationship" animation production methods.

The main body of a book has been analysed having problem and being not worth in engineering drawing tradition teaching, computer-aid teaching will be the development direction reforming. The material having given an account of the CAI class taking Flash as carrier's is collected, the button fabrication introduction with the script write , visual measurement method, class develops technological process and their characteristic. Introduce that "T square setting-out " &q