The paper expounds the principle of triangular elevation surveying and its accuracy, and further presents the accuracy norm for 4(superscript th) grade of leveling surveging.
The paper expounds the principle of triangular elevation surveying and its accuracy, and further presents the accuracy norm for 4(superscript th) grade of leveling surveging.
摘要阐述全站仪三角高程测量的原理及精度，在此基础上得出达到四等水准测量的精度要求。