Home / Standards / GBT 24637.4-2020 GBT 24637.4-2020 Geometrical product specifications — General concepts — Part 4: Quantification of GPS deviations for geometrical features 产品几何技术规范 通用概念 第4部分：几何特征的GPS偏差量化 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A