Introduction to aerospace technology, engineering thermodynamics and mechanical principles. According to official website of University of Aeronautics and Astronautics, the re-examination subjects of Nanjing University of Aeronautics and Astronautics in 2023 include introduction to aerospace technology, engineering thermodynamics and mechanical principles. Nanjing University of Aeronautics and Astronautics is a comprehensive national key university with aerospace and civil aviation characteristics directly under the Ministry of Industry and Information Technology of the People's Republic of China, focusing on science and engineering.