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天火字典

英日字典: astronomical_year

astronomical year   (TTS Sound)


The astronomical_year has 1 Senses.

  • astronomical year, tropical year, solar year, equinoctial year
  • 太陽年
  • the time for the earth to make one revolution around the sun, measured between two vernal equinoxes
  • 春分と春分の間隔で計られる地球が太陽の周りを1回公転する時間

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