The Secular Perturbation Effect of the Solar Polytropic Model on the Variation of Planetary Orbital Elements
太阳多方模型对行星轨道要素变化的长期摄动影响
The secular and periodic perturbation effects are both given .
给出自转对轨道产生的长期摄动效应和周期摄动效应。
On the Secular Terms in Random Perturbation Analysis
非平稳随机摄动分析中的久期项效应
secular perturbationsecular perturbationsecular perturbation