City rooftops become vegetable gardens
(chinadaily.com.cn)
2010-11-24 11:23
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 A woman waters vegetables growing on her balcony in Hefei, the capital of East China's Anhui province on Nov 23, 2010. [Photo/Xinhua]
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Charger captures power from Wifi
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'Green seeds' chewing gum bottle
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Bulb water heater
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China International Green Industry Expo 2010
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