Tiān-náu hú-chō͘ siat-kè
- Design Council on Computer Aided Design Design Council one stop shop information resource on CAD by Paul Siodmok.
- CAE includes FEA
- CAD Systems in Education List of CAD systems developed in Universities for educational and commercial use.
- tools 4 CAD - CAD resource site including tips, tricks and products
- 3D model of a cylinder cover, interactiv（Acrobat Reader 8.1 or higher）