| 单词 | tropical year |
| 释义 | tropical year (once / 227295 pages) n WORD FAMILY tropical year: tropical years USAGE EXAMPLESThis rate is known as the mean tropical year. Scientific American(Oct 18, 2011) By taking this amount from the sidereal we obtain the tropical year, which has reference to the seasons and the calendar. Blake, John F., Astronomical Myths—Based on Flammar...(2011) It is called a tropical year with reference to the circuit which the sun makes from one tropic to the other and back again. Comstock, George C., A Text-Book of Astronomy(2011) n the time for the earth to make one revolution around the sun, measured between two vernal equinoxes Syn|Hyper astronomical year, equinoctial year, solar year year the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun |
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