GB/T 39398-2020全球连续监测评估系统(iGMAS)监测评估参数标准
英文:Monitoring and assessment parameters of international GNSS monitoring and assessment system (iGMAS) GB/T 39398-2020介绍...
英文:Monitoring and assessment parameters of international GNSS monitoring and assessment system (iGMAS) GB/T 39398-2020介绍...