As the Givin developed intellectually, they perfected complex forms of mathematics to help predict the bizarre moon system orbiting Yag'Dhul.
随着吉文人高度智慧化，他们完成了形式复杂的数学体系，以预测亚格杜尔星轨道上奇异的卫星系运动。
Then on the basis of invariant manifold theory and Poincaré section, a transfer trajetory between L1 and L2 of the Earth-Moon system was given.
然后基于不变流形理论和庞加莱截面方法，设计了不同拉格朗日点间转移轨道。
Finally, the implications of tidal rhythmites for the Earth's rotation and the history of the Earth-Moon system in geological past are concluded.
最后，对潮汐韵律层在推测地史时期地-月系的演化历史中的意义作了评述。
The dynamics of the Earth-Moon system is quite different from the Sun-Earth system especially after a long duration for the gravitational attraction of the Sun.
由于在地-月系统中太阳的引力不可忽略，特别是在长时间作用以后，其动力学行为与摄动力较小的日-地系统有明显的不同。
The dynamics of the Earth-Moon system is quite different from the Sun-Earth system especially after a long duration for the gravitational attraction of the Sun.
由于在地-月系统中太阳的引力不可忽略，特别是在长时间作用以后，其动力学行为与摄动力较小的日-地系统有明显的不同。
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