People visit the new energy exhibition area of the China-Arab States Expo 2015 in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, Sept. 10, 2015. The four-day expo kicked off here Thursday. (Photo: Xinhua/Peng Zhaozhi)
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People visit the new energy exhibition area of the China-Arab States Expo 2015 in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, Sept. 10, 2015. The four-day expo kicked off here Thursday. (Photo: Xinhua/Peng Zhaozhi)
