orbital period rate 轨道周期变化
orbital period change 轨道周期变率
orbital period decay rate 轨道周期衰减率
Orbital period & Satellite altitude 轨道周期与卫星高度对应关系
short orbital-period binary pulsar 短轨道周期脉冲双星
orbital l period 轨道周期
With all available eclipse times, we studied the period change of this system. It is found that the orbital period of this system exists secular decrease withdP/dt = -2.63×10-8 days/year.
通过周期分析发现系统轨道周期长期减小，减小率为dp/dt=-2． 63×10-8天／年，此结果与钱声帮2002年的结果一致。
参考来源 - 近相接型密近双星的观测研究·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
What is the orbital period of the sandwich after the throw?
被扔的三明治的，轨道周期是多少？
As a result, Brown and his team will have to wait until fall to measure the expected shortening of the orbital period.
结果就是，布朗和他的研究团队只有等到今年秋天才能测量出它们的公转周期到底减少了多少。
We know the period, we know where apogee is, we know where perigee is, - we know the orbital period — anything we want to know.
知道周期，知道远地点，和近地点在哪里，知道轨道周期-，知道了想知道的一切。
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