Snow movers clean streets in Altay, northwest China's Xinjiang Uygur Autonomous Region, Feb. 19, 2017. A blue alert for cold wave brought by a blast of strong cold air was issued on Sunday, according to the National Meteorological Center. (Xinhua)
Snow movers clean streets in Altay, northwest China's Xinjiang Uygur Autonomous Region, Feb. 19, 2017. A blue alert for cold wave brought by a blast of strong cold air was issued on Sunday, according to the National Meteorological Center. (Xinhua)