“fictitious year”的概念、定义、翻译、参考文献-科学参考

单词	fictitious year
释义	fictitious year [fik`tish·ǝs `yir] ^ASTRONOMY The period between successive returns of the fictitious mean sun to a sidereal hour angle of 80° (right ascension 18 hours 40 minutes; about January 1); the length of the fictitious year is the same as that of the tropical year, since both are based upon the position of the sun with respect to the vernal equinox. Also known as Besselian year.
随便看	barbellate bar bending barber barberite barbertonite barbette barbicel barbierite barbital barbiturate barbituric acid barbiturism bar buoy barbwire bar chair barchan barchane bar chart bar clamp bar code bar-code reader bar-code scanner Bardeen-Cooper-Schrieffer theory bar drawing bar drill

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