“Greenwich apparent noon”的概念、定义、翻译、参考文献-科学参考

单词	Greenwich apparent noon
释义	Greenwich apparent noon [`gren·ich ǝ`par·ǝnt ¦nün] ^ASTRONOMY Local apparent noon at the Greenwich meridian; twelve o'clock Greenwich apparent time, or the instant the apparent sun is over the upper branch of the Greenwich meridian.
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