STRUCTURAL COMPUTER AIDED DESIGN FOR SOLID ROCKET MOTORS WITH FINOCYL GRAIN──TO SKETCH PARAMETRICALLY ENGINEERING DRAWINGS
School of Astronautics, Beijing Univ. of Aeronautics and Astronautics, Beijing, 100083;School of Astronautics, Beijing Univ. of Aeronautics and Astronautics, Beijing, 100083;School of Astronautics, Beijing Univ. of Aeronautics and Astronautics, Beijing, 100083;School of Astronautics, Beijing Univ. of Aeronautics and Astronautics, Beijing, 100083