名词
中文翻译：圆顶期
同义词：
['apsidal cycle', "apsidal period例句：1. The planetary alignment is the apsidal period of the moon's orbit around the Earth.（行星排列是月球围绕地球的轨道的圆顶期。）"]
例句：
-
1. The planetary alignment is the apsidal period of the moon's orbit around the Earth.
行星排列是月球围绕地球的轨道的圆顶期。
-
2.The apsidal period of the star varies with its distance from us.
恒星的圆顶期随着它离我们的距离而变化。
-
3.Astronomers use precise measurements of the apsidal period to study the motion of stars and planets.
天文学家使用精确测量圆顶期来研究恒星和行星的运动。