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A worker shows a highly-efficient food cleaning system at the China International Energy Saving and Environmental Protection Exhibition 2009 in Beijing, capital of China, June 14, 2009. The exhibition kicked off on Sunday and attracted over 250 enterprises from home and abroad. [Xinhua]
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![A worker shows a highly-efficient food cleaning system at the China International Energy Saving and Environmental Protection Exhibition 2009 in Beijing, capital of China, June 14, 2009. The exhibition kicked off on Sunday and attracted over 250 enterprises from home and abroad. [Xinhua]](http://images.china.cn/attachement/jpg/site1007/20090615/000cf1a48b7f0b9feda413.jpg "A worker shows a highly-efficient food cleaning system at the China International Energy Saving and Environmental Protection Exhibition 2009 in Beijing, capital of China, June 14, 2009. The exhibition kicked off on Sunday and attracted over 250 enterprises from home and abroad. [Xinhua]")
