“astronomical day”的概念、定义、翻译、参考文献-科学参考

单词	astronomical day
释义	astronomical day [´as·trǝ`näm·ǝ·kǝl `dā] ^ASTRONOMY A mean solar day beginning at mean noon, 12 hours later than the beginning of the civil day of the same date; astronomers now generally use the civil day.
随便看	geomagnetic variation geomagnetism geometrical acoustics geometric albedo geometrical dip antarctic air antarctic anticyclone Antarctic Circle Antarctic Circumpolar Current Antarctic Convergence antarctic faunal region antarctic front Antarctic Intermediate Water Antarctic Ocean Antarctic Zone Antares antazoline anteater antebrachium antecedent antecedent platform antecedent precipitation index antecedent stream antecedent valley anteconsequent stream

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