The book interprets the basic operation and related knowledge of Chinese AutoCAD 2009 systematically. Twelve chapters contents, combining the cases, discuss the line drawing, layer and drawing assistant, pattern fill, text and spreadsheet, construction drawing, dimensioning, graphical output and other knowledge on AutoCAD 2009 methodically with a concise, practical and easy-to-understand language. The book introduces the application relationship of AutoCAD and 3ds Max software, with the excellent coordination of tools and related case explanation to make the synthesis example. Through the unit exercises involving machinery and architecture at the end of each chapter, the readers can check their learning effects in time. This book can be treated as the mechanical drawing textbook for students majored in electrical engineering, environmental art design, garden planning, computer application, civil engineering, etc. in higher vocational education; also it can be used as amateur...