中国边境矢量文件，带地理坐标，可用envi等软件打开，进行影像裁剪等后续工作。 坐标信息：These data were extracted from the GADM database (www.gadm.org), version 2.8, November 2015. They can be used for non-commercial purposes only. It is not allowed to redistribute these data, or use them f