GB 22021-2008
ActiveBasic specifications for national geodesy
国家大地测量基本技术规定
Application Summary AI generated
GB 22021-2008 specifies the fundamental technical requirements for national geodetic surveying, including reference systems, accuracy classes, and observation methods. It is applied in China for establishing and maintaining the national geodetic control network, which supports mapping, land surveying, and infrastructure projects requiring precise spatial positioning. This standard ensures consistency and interoperability across geodetic data used in civil engineering, geographic information systems, and scientific research.
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