Lao Guihong (C) from Dalian University of Technology adjusts a robot designed for picking at the 20th National Robot and Artificial Intelligence Competition in Shunde District of Foshan, south China's Guangdong Province, Oct. 24, 2018. The 20th National Robot and Artificial Intelligence Competition kicked off here on Wednesday. More than 200 teams from 78 Chinese colleges will take part in 49 competitions under 13 categories. (Xinhua/Chen Liqun)