Robots designed by contestants from the South China University of Technology and the Northeastern University compete during the final of the RoboMaster 2018 competition in Shenzhen, south China's Guangdong Province, July 29, 2018. Contestants from South China University of Technology won the final on Sunday. (Xinhua/Mao Siqian)

Contestants from South China University of Technology celebrate after they win the final of the RoboMaster 2018 competition in Shenzhen, south China's Guangdong Province, July 29, 2018. (Xinhua/Mao Siqian)

Contestants discuss robot design during the final of the RoboMaster 2018 competition in Shenzhen, south China's Guangdong Province, July 29, 2018. Contestants from South China University of Technology won the final on Sunday. (Xinhua/Mao Siqian)