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单词 lunar equation
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lunar equation
lunar equation n. the intercalation of a lunar month after three lunar years; also, the correction of the epact in the Gregorian calendar necessitated by the error of the lunar cycle.
ΘΚΠ
the world > the universe > cosmology > science of observation > astronomical calculation > [noun]
prosthaphaeresis1599
annual equation1700
lunar equation1712
metemptosis1728
1712 J. T. Desaguliers tr. Ozanam Geogr. 66 The Addition of 30 Days to the third Lunar Year, is call'd the Lunar Equation.
extracted from lunaradj.n.
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