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揭秘上海世博會“隱身”科技看點
Invisible high-tech wonders of the Shanghai Expo
Gorgeous music fountain is performed during trial operation on the Huangpu River between the two parts of the Expo Park in Shanghai, east China, April. 22, 2010. [Xinhua/Wu Huang]
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![Gorgeous music fountain is performed during trial operation on the Huangpu River between the two parts of the Expo Park in Shanghai, east China, April. 22, 2010. [Xinhua/Wu Huang]](http://images.china.cn/attachement/jpg/site1007/20100510/0011432100f50d51e93f03.jpg "Gorgeous music fountain is performed during trial operation on the Huangpu River between the two parts of the Expo Park in Shanghai, east China, April. 22, 2010. [Xinhua/Wu Huang]")
