Home / Standards / GB/T 16789-2019 GB/T 16789-2019 Active Specifications of the baseline measurements 比长基线测量规范 Standard Type GBT ICS 07.040 CCS A76 Status 现行 Issue Date 2019-03-25 Implementation 2019-10-01 Responsible Dept 自然资源部(测绘地理) Drafting Unit N/A