1. Research Institute of State, Grid Shanxi Electric Power Company,Economic and Technical,Taiyuan,China
2. Yingda Chang'an Insurance Brokers Co., LTD,Taiyuan,China
3. Land Port Qian Hai JS international Leasing Co., Ltd,Taiyuan,China
4. Huayuan Land Port Multimidly Transportation Technology Co., LTD,Taiyuan,China
5. North China Electric Power University,Beijing,China