1. Department of Advanced Manufacturing and Robotics, College of Engineering, State Key Laboratory for Turbulence and Complex Systems, Peking University, Beijing, China
2. School of Mechanical Engineering and Automation, Beihang University, Beijing, China
3. Department of Mechanical Engineering, Fuzhou University, Fuzhou, China
4. National Engineering Laboratory for Digital and Material Technology of Stomatology, Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, China