Logging Company of Daqing Petroleum Administration Bureau198908 ~199108
199109 ~199303 department of applied mathematics, Harbin institute of technology
199304 ~ 199608 Daqing Petroleum Administration Bureau
199609 ~ 2000 12 physics department of Jilin university
200 10 1 ~ 200703 Logging Company of Daqing Petroleum Administration Bureau
200704-present Northeast Petroleum University