![CHINA-HARBIN-ROBOT-FAIR (CN)](135544790_14696197217171n.jpg)
HARBIN, July 27, 2016 (Xinhua) -- A cleaning robot made by college students is displayed at a robot fair in Harbin, capital of northeast China's Heilongjiang Province, July 27, 2016. The robot fair offered a platform for college students to showcase their talents on innovative machinery. (Xinhua/Wang Kai)