YaoLiu,male, master student. Born in November 2020, Heze, Shandong. He graduated from the Mechanical College of Yantai University in June 2020. He obtained a bachelor's degree in mechanical design and manufacturing and automation engineering. He was admitted to the School of Mechanical and Automotive Engineering of Qingdao Technological University the sam year. He continued his master's degree in mechanical engineering. His tutor is teacher Xinming Li.