Russian exhibitors show a model of a mobile house that can fully use solar energy during a China-Russia science and technology expo in Manchuria of China's Inner Mongolia Autonomous Region on Aug. 28, 2006. A four-day-long "Year of Russia in China" opened in Manchuria of China's Inner Mongolia Autonomous Region on Monday, including "China-Russia science and technology expo" and "China-Russia economy and trade expo". (Xinhua Photo) Photo Gallery >>>