A visitor tries a flight simulator designed by Nanjing University of Aeronautics and Astronautics at the 2008 Shanghai International Industry Fair opened in Shanghai, China, Nov. 4, 2008. Covering an area of over 120,000 square meters, the exhibition attracted a total of 1816 companies from 25 countries and regions, and served as the largest of its kind in history as the fair has come to its 10th year.