The earth is nonspherical and has a tilted axis.
地球不是球形的并有一倾斜的转轴。
A gradient in the gravitational forces acting on different parts of a nonspherical object.
作用于非天体物体不同部分的引力梯度。
The orbit variation in one day under the nonspherical perturbation is shown and the motion of the orbit plane is computed.
计算给出了一日内的卫星轨道,反映了在地球非球形摄动下轨道的变化情况,且对轨道面的进动进行了计算。
The earth is nonspherical and has a tilted axis.
地球不是球形的并有一倾斜的转轴.