单词period of revolution
un.: 公转周期
网络: 回转周期
公转周期
the last fourth of the moon"s period of revolution around the Earth.
月球围绕地球运转的末一个周期。
Moreover more uses easily to use, Period of revolution above ten years!
而且越用越好用，使用时间在十年以上！小巧玲珑，是你居家的好帮手！
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。