1. College of Rail Transit Locomotive and Vehicle, Hunan Railway Professional Technology College, No.18 Tian Xin Road, Shifeng District, Zhuzhou, Hunan 412001, China
2. Hunan Railway Professional Technology College, No.18 Tian Xin Road, Shifeng District, Zhuzhou, Hunan 412001, China
3. Hunan University of Technology, No.188 Taishan Xi Road, Tianyuan District, Zhuzhou, Hunan 412007, China