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 ![]() Zeng Qiang shows a model plane at his house in Sifang village, Shuangqiao district, Southwest China's Chongqing municipality, Sept 19, 2010. [Photo/CFP]  | 
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 ![]() Zeng Qiang shows a notebook where he recorded the design of his plane at his house in Sifang village, Shuangqiao district, Southwest China's Chongqing municipality, Sept 19, 2010. [Photo/CFP]  |