BEIJING, Lanzhou, April 15 (Reporter Feng Zhijun Wei Jianjun) 15, stretching about 1,600 km of things most of Gansu first soaking rain ushered in spring, has been much more extreme wind, dust, rain, snow, frost, etc. weather. Both "rolling sand wall engulf the county," the rare landscape, but also the "depth of 9 cm of snow," the chilly spring snow, the temperature dips also turns warm again. "From the pedestrian dress can not tell the seasons," the netizen tune ...