单词mean solar time
un.: 平均太阳时；平太阳时
平太阳时
平均太阳时
The equation of time, which transforms the true solar time into a mean uniform time, the so-called mean solar time.
时差，将真太阳时转换为平时，即平太阳时。
retardation of mean solar time
平太阳时迟滞差