| 释义 |
Definition of mean solar time in English: mean solar timenoun mass nounAstronomy Time as calculated by the motion of the mean sun (such as is shown by an ordinary clock). Example sentencesExamples - The tropical, or solar, year is measured relative to the sun and is the time between successive vernal equinoxes (365 days, 5 hr, 48 min, 46 sec of mean solar time).
- The mean solar time on the Greenwich Meridian of longitude, was defined to pass through the Airy Transit Circle at Greenwich in England and was adopted internationally as the zero of longitude at a conference in Washington in 1884.
Definition of mean solar time in US English: mean solar timenoun Astronomy Time as calculated by the motion of the mean sun. The time shown by an ordinary clock corresponds to mean solar time. Compare with apparent solar time Example sentencesExamples - The tropical, or solar, year is measured relative to the sun and is the time between successive vernal equinoxes (365 days, 5 hr, 48 min, 46 sec of mean solar time).
- The mean solar time on the Greenwich Meridian of longitude, was defined to pass through the Airy Transit Circle at Greenwich in England and was adopted internationally as the zero of longitude at a conference in Washington in 1884.
|