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由于《混凝土大坝安全监测技术规范》未对外部变形观测控制网最弱点的点位中误差作规定，文章根据建网的目的、监测点和工作基点需要的精度、现行国内外最先进的仪器所能达到的精度和实例，对外部变形观测控制网的精度要求进行探讨。
Due to the fact that “Technical Specifications for Concrete Dam Safety Monitoring” does not stipulate the error in the point of the most weak point of the external deformation monitoring network, according to the purpose of network construction, the accuracy of the monitoring points and working points, the current domestic and international most advanced instruments The accuracy and examples that can be achieved, the precision requirements of the external deformation observation control network are discussed.