Home / Standards / GB/T 13990-2012 GB/T 13990-2012 Active Specifications for aerophotogrammetric office operation of 1:5 000 1:10 000 topographic maps 1:5 000 1:10 000 地形图航空摄影测量内业规范 Standard Type GBT ICS 07.040 CCS A77 Status 现行 Issue Date 2012-06-29 Implementation 2012-10-01 Responsible Dept 自然资源部（测绘地理） Drafting Unit N/A