earth ellipsoid

基本解释

The elements of earth-ellipsoid such as radius M of curvature in meridian are the function of latitude.
如子午线曲率半径M等的地球椭球要素是纬度的函数。
Algorithms of the monitoring devices scanning the terrain are presented, using the DEM and the earth ellipsoid's properties based on the global visualization in this paper.
该文在全球地形可视化的基础上，结合DEM数据和地球椭球的特性，论述了侦察设备扫描地形环境可视域模型的算法。
Based on the theory of differential geometry and geodesy, the second order differential equation and the first differential relationship are derived on the regional earth ellipsoid in this paper.
通过在积分换元、微分方程求解、多（一）元复合函数求全微分、偏导数及高阶偏导数中的应用举例，论述了一阶微分的形式不变性在微积分学中的作用不应被忽略。