| 单词 | astronomical year |
| 释义 | astronomical year (once / 656629 pages) n WORD FAMILY astronomical year USAGE EXAMPLESMore than any other event, it marks the beginning of the astronomical year. Scientific American(Mar 20, 2013) Although Julius Cæsar's correction and his provisions for keeping the "civil" year coincident with the astronomical year were admirable, yet they were not perfect. Lankester, E. Ray (Edwin Ray), Sir, More Science From an Easy Chair(2010) His astronomer, by name Sosigenes, did his best, but assumed the astronomical year to be 11 min. Lankester, E. Ray (Edwin Ray), Sir, More Science From an Easy Chair(2010) n the time for the earth to make one revolution around the sun, measured between two vernal equinoxes Syn|Hyper equinoctial year, solar year, tropical 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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