1) height survey EDM
EDM测高
1.
This main effect on height survey EDM is atmospheric refraction.
大气折光是限制EDM测高精度的主要因素。
2) EDM trigonometric leveling
EDM三角高程测量
1.
A practicable method of correction for atmospheric refraction in precise EDM trigonometric leveling;
精密EDM三角高程测量中的折光改正实用方法
2.
Through to EDM trigonometric leveling basic principle analysis,Determination measuring origin,And formulates the corresponding quality control measure in actual process,Guaranteed EDM trigonometric leveling satisfies the bridge building-measuring accuracy request,And closes the NANJING Dashengguan bridge as the example.
通过对EDM三角高程测量基本原理的分析,确定测量误差的主要来源,并在施测过程中制定相应的质量控制措施,保证EDM三角高程测量满足桥梁工程测量精度要求,并以南京大胜关长江大桥为例进行说明。
3.
On the basis of the traditional inversion method and the theoretical calculation model of atmospheric vertical refraction coefficient in lowest troposphere, a new inversion method for calculating the refraction coefficients by use of the results of the direct and reversed EDM trigonometric leveling is put forward.
以近地层大气垂直折光系数的传统反演方法和理论计算模型为基础,提出了一种可以直接利用对向EDM三角高程测量结果计算往测与返测折光系数的新反演方法。
3) EDM precise trigonometrical leveling
EDM精密三角高程测量
4) high efficiency EDM
高效率EDM
5) Side length with EDM
EDM测边
6) PDM/EDM
EDM/PDM
补充资料：测高雷达(见对空情报雷达)
测高雷达(见对空情报雷达)
altitude finding radar
cegQo leida测高雷达(altitude finding radar)见对空情报雷达。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条