Visitors are attracted by a model of comprehensive new energy source utilizing system at the China International Energy Saving and Environmental Protection Exhibition 2009 in Beijing, capital of China, on June 14, 2009. The exhibition kicked off on Sunday and attracted over 250 enterprises from home and abroad. [Xinhua]

Visitors are attracted by a model of energy saving building at the China International Energy Saving and Environmental Protection Exhibition 2009 in Beijing, capital of China, on June 14, 2009. The exhibition kicked off on Sunday and attracted over 250 enterprises from home and abroad. [Xinhua]