单词sidereal period
un.: 恒星周期网络: 公转恒星周期;对恒星周期;的平方与它离太阳距离的立
恒星周期
The Mercury is the smallest of the planets and the one nearest the sun, having a sidereal period of revolution about the sun of 88 days
水星是行星中最小且离太阳最近的星,围绕太阳公转所需的周期为88天。