We take the engineering control network as an example. Generally, it is required that the point error of the lowest level control network (fourth-level network) can meet the large-scale 1:500 mapping requirements.
We take the engineering control network as an example, generally requires the lowest level of control network (fourth-class network) in the point error can meet the large scale 1:500 mapping requirements.
Taking the engineering control network as an example, it is generally required that the point mean square error of the lowest level control network (fourth-class network) can meet the requirements of large-scale 1:500 mapping.<br>