GEOGCS["Xian 1980",
    DATUM["Xian_1980",
        SPHEROID["IAG 1975",6378140,298.257,
            AUTHORITY["EPSG","7049"]],
        AUTHORITY["EPSG","6610"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4610"]]