常用的EPSG

 http://spatialreference.org/ref/epsg/2385/

EPSG:2385
Xian 1980 / 3-degree Gauss-Kruger CM 120E

EPSG:2384
Xian 1980 / 3-degree Gauss-Kruger CM 117E

EPSG:4326
WGS 84

EPSG:4548
CGCS2000 / 3-degree Gauss-Kruger CM 117E


EPSG:4547
CGCS2000 / 3-degree Gauss-Kruger CM 114E