通过引入假想交点的概念，推导出了交点周期、基本交点距与轨道高度的关系。
Then, the relationship among nodal period, fundamental interval and orbital altitude was educed by deriving the definitions of fictitious node.
在分析编队构形一般设计方法设计效果的基础上，提出一种等交点周期法，对一般方法进行了改进。
On the basis of analyzing the effect of common configuration design method for the general method, the equal nodal period design method is introduced to improve the general method in this paper.
并给出了在轨道交点周期、回归圈数、回归周期、重复周期和其他因素等约束条件下的轨道设计要点。
The key points of the design under the restrained conditions, such as orbit node period, regressive cycles, regressive period, repeat period and others, were also presented.
南交点经过它本命盘位置是另一个与上述周期同时发生的18年周期。
The South Node going over its natal position becomes another 18-year cycle which coincides with the above cycle.
因此，在狮子座的南交点也具有同样的时间周期，我们可以说作为我们每一个个体将会有一些特殊的事物要进行分享。
Therefore, with the South Node in Leo for the same period of time, we can say that each of us individually has something special ready to share.
自月前南交点离开，同时爱之星金星开始将你过去的爱情周期放缓下来以后，这是月亮第一次运行至此。
This is the Moon's first visit since the South Node left earlier in the month and since Venus, planet of love began winding down your old Venus cycle.
行运北交点经过本命盘北交点是以18年之久为一个周期行经黄道12星座。
Transiting North node going over the natal North node is an 18-year cycle as it takes that much time for the nodes to travel through the zodiac.
沙罗周期日数约为朔望月周期（29.53日）、交点月周期（27.21 日） 和近点月周期（27.55 日） 的最小公倍数。
It is approximately the LCM (lowest common multiple) of the synodic period (29.53 days), draconic period (27.21 days), and the anomalistic period (27.55 days) of the Moon.
沙罗周期日数约为朔望月周期（29.53日）、交点月周期（27.21 日） 和近点月周期（27.55 日） 的最小公倍数。
It is approximately the LCM (lowest common multiple) of the synodic period (29.53 days), draconic period (27.21 days), and the anomalistic period (27.55 days) of the Moon.
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