GB 50026-2020
工程测量标准
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Scope as published
工程测量应以中误差作为衡量测绘精度的标准，并应以二倍中误差作为极限误差。对于精度要求较高的工程，可按附录A的方法评定观测精度。
The original Chinese text is authoritative; this excerpt is retained as catalogue metadata, not a translated normative requirement.
Version history
Earlier editions: None recorded
Later editions: None recorded
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