1. Liu Feng: Male, Han nationality, from Beibei, Chongqing, party member, china zhi gong party, 1982 graduated from the Agricultural Mechanization Department of Southwest Agricultural College (now Southwest University) with a bachelor's degree in engineering, and worked in Chongqing Puling Machinery Factory in the same year. 1988 was rated as an engineer. From 1994, he was transferred to the Department of Automobile Traction of Agricultural Engineering College of Southwest Agricultural University, and was named as an associate professor from 1997.

Engaged in teaching, experiment and research of automobile structure and engine principle for a long time, and has in-depth research on engine energy saving; To undertake the guidance of undergraduate graduation design. Since 1998, I have been working as a tutor for graduate students.

2. Liu Feng, male, born in 1980, graduated from the Center for Ecological Environment Research of Chinese Academy of Sciences in 2008 with a doctorate in environmental economics and environmental management. Currently, he is an associate professor of Southwest University, a tutor for master students, and a visiting scholar of "Young Key Teachers" in Peking University.