UDBX 4490 METER PCS_EARTH_LONGITUDE_LATITUDE DEGREE GCS_China_2000 DEGREE D_China_2000 DATUM_CHINA_2000 6378137.0 0.00335281068118232 CGCS2000 SPHEROID_CHINA_2000 GCS_China_2000 SPATIALREF_EARTH_LONGITUDE_LATITUDE GCS_CHINA_2000 0.0 Greenwich PRIMEMERIDIAN_GREENWICH DEGREE METER dggoujie https://supergis.yunzhengshou.com/iserver/services/data-dghoujie/rest/data/datasources/dggoujie/datasets