预定的飞行轨迹可以有两种规划方式，一是近似在当地切平面上的直线或曲线；

One is straight line or curve on the local plane. The other is the great circle flight path on the earth surface.

youdao

预定的飞行轨迹可以有两种规划方式，一是近似在当地切平面上的直线或曲线；

One is straight line or curve on the local plane. The other is the great circle flight path on the earth surface.

youdao