用来计算地球表面两点之间的距离，该程序通过输入两点的经纬度坐标确定两点的距离，可用于各种工程应用当中

用来计算地球表面两点之间的距离，该程序通过输入两点的经纬度坐标确定两点的距离，可用于各种工程应用当中-The Earth s surface used to calculate the distance between two points, two points in the program by entering the latitude and longitude coordinates to determine the dist

计算两点之间距离，利用经纬度坐标计算平面距离，有多种投影方式可供选择-Calculate the distance between two points using the latitude and longitude coordinates of the plane the calculation, there are many ways to choose a projection