1. School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, P. R. China
2. Guangdong Provincial Key Laboratory of Advanced Manufacturing Technology for Marine Energy Facilities, Guangdong University of Technology, Guangzhou, P. R. China
3. Laboratory of Nano Surface Engineering, Department of Materials Science, Harbin Institute of Technology, Harbin, P. R. China
4. DeepHytec Co., Ltd., Shenzhen, P. R. China