元数据
郑州,2013.8
郑州,2013.9
郑州,2013.10
郑州,2013.11
郑州,2013.12
泾河,2013.1
泾河,2013.2
泾河,2013.3
泾河,2013.4
长春,2013.8
长春,2013.9
长春,2013.10
长春,2013.11
长春,2013.12
沈阳,2013.1