XI'AN, July 24, 2016 (Xinhua) -- Competitors readjust a robot during a competition held in Xi'an Jiaotong University in Xi'an, northwest China's Shaanxi Province, July 24, 2016. A total of 17 teams took part in the western finals of the RoboMasters2016. Students from Xi'an Jiaotong University claimed the championship. (Xinhua/Li Yibo)