?? 西安1980平面20度帶（6度分帶不加帶號）.prj
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PROJCS["西安1980平面20度帶（6度分帶不加帶號）",GEOGCS["西安1980",DATUM["<custom>",SPHEROID["<custom>",6378140.0,298.2569999999957]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Gauss_Kruger"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",117.0],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]?? 快捷鍵說明
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