sidereal day

• n. 恒星日(较标准日约短四分钟)

英英释义

Noun:

1. the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day

例句

用作名词 (n.)

1. A sidereal day is shorter than a mean solar day by 3 minutes and 56 seconds.
   恒星日比平均太阳日短三分五十六秒。

近反义词

【近义词】

• day 白天