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英语翻译
Just as Greenwich serves to define the Prime Meridian
on the Earth's surface,so the Vernal Equinox serves
to define the zero right ascension line.
人气:162 ℃ 时间:2019-09-10 08:56:24
解答
正如格林威治用来定义地表的本初子午线,所以春分用来定义零度赤经线.
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