All right. Combustion is a science that studies combustion phenomenon, practice and theory. Combustion involves chemistry, thermodynamics, heat and mass transfer, fluid mechanics and so on. Northeastern University has a good major in chemical combustion and a good job. Northeastern University, a national key university directly under the Ministry of Education of China, is jointly established by the Ministry of Education, Liaoning Province and Shenyang City, and is a national first-class construction university.