A visitor experiences the driving simulation system during the China (Shanghai) International Technology Fair in Shanghai, east China, May 8, 2013. (Xinhua/Jin Xin)

Visitors watch the product demonstration at the exhibition area of Volvo during the China (Shanghai) International Technology Fair in Shanghai, east China, May 8, 2013. (Xinhua/Jin Xin)

A visitor watches an automatic robot working during the China (Shanghai) International Technology Fair in Shanghai, east China, May 8, 2013. (Xinhua/Jin Xin)

Visitors watch a smart robot drawing pictures during the China (Shanghai) International Technology Fair in Shanghai, east China, May 8, 2013. (Xinhua/Jin Xin)