Explanation：
2010 Shanghai World Expo grand opening on both sides of the Huangpu River, the world's urban civilization and scientific and technological progress in this brilliant focus. JIAWEL network advertising machine to convey the theme of the Expo, the results show the achievements of human civilization...
Explanation：
In the subway has become the main means of transport for people's travel, how to timely, accurate and convenient transfer complex station information, while taking into account the economic effect becomes problem to be solved the Beijing subway and the public transportation industry. JIAWEL digi...