Dancing robots attract the attention of many visitors at a hi-tech fair in Chongqing, southwest China, April 8, 2010. The 9th Chongqing Hi-tech Fair, also a 5th China international exhibition of technologies for both military and civilian use, opened Thursday in Chongqing. A total of 170 delegations and 1603 enterprises with more than 13000 projects took part in the fair which will last till April 11, 2010. (Xinhua/Chen Cheng) |