2018--2019学年人教版必修五Unit 1 great scientists using language课件(43张)
2018--2019学年人教版必修五Unit 1 great scientists using language课件(43张)第3页

Qian is one of the pioneers of China's space science. A world- famous expert on aerospace rockets and aerodynamics, Qian has obtained great attainments in the areas of applied mechanics, engineering cybernetics and system engineering and made distinguished contributions to the foundation and development of Chinese aerospace undertaking.