orbital period

• 轨道周期,公转周期

orbital period的用法和样例：

例句

1. The orbit period depends on the altitude of the satellite.
   卫星的轨道周期取决于其高度。
2. With Callisto's orbital period of about half a month, the entire sequence could take less than a year.
   由于木卫四绕木星公转的轨道周期约为半个月，整个过程只需不到一年。