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paperback. Condición: New. Paperback Pages Number: 101 Language: Chinese. Descriptive Geometry and Mechanical Drawing Problem Set (Mechanical Engineering) according to the Ecole Polytechnique in 1995. the State Board of Education approved the issuance of descriptive geometry and mechanical drawing course teaching the basic requirements (mechanical Specialty applicable) to write. All the mechanical drawing national standards. The main contents include: the relative positions of points. lines and plane of projection; str.