Robot contest held in Zhengzhou, Henan A robot performs shadow boxing during a robot contest in Zhengzhou, central China's Henan Provi...

Robot contest held in Zhengzhou, Henan

A robot performs shadow boxing during a robot contest in Zhengzhou, central China's Henan Province, May 6, 2012. Some 300 students of universities in the province took their robots in the contest on Sunday. (Xinhua/Li Bo)

A robot is measured before martial arts performance during a robot contest in Zhengzhou, central China's Henan Province, May 6, 2012. Some 300 students of universities in the province took their robots in the contest on Sunday. (Xinhua/Li Bo)

A robot performs shadow boxing during a robot contest in Zhengzhou, central China's Henan Province, May 6, 2012. Some 300 students of universities in the province took their robots in the contest on Sunday. (Xinhua/Li Bo)

A robot wheels along a track during a robot contest in Zhengzhou, central China's Henan Province, May 6, 2012. Some 300 students of universities in the province took their robots in the contest on Sunday. (Xinhua/Li Bo)

Robots fight each other during a robot contest in Zhengzhou, central China's Henan Province, May 6, 2012. Some 300 students of universities in the province took their robots in the contest on Sunday. (Xinhua/Li Bo)

Some 300 students of universities in Henan Province took part in a robot contest in Zhengzhou, May 6, 2012.