An opening ceremony of the 12th China High-Tech Fair (CHTF) is held in Shenzhen, South China's Guangdong province, Nov 16, 2010. Themed on "Technology-led Transition and Innovation-driven Development", CHTF 2010 highlights low-carbon economy, environmental protection, new energy and the 30th anniversary of Shenzhen Special Economic Zone. [Photo/chinadaily.com.cn]
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