“earth rotation parameter”的概念、定义、翻译、参考文献-科学参考

单词	earth rotation parameter
释义	earth rotation parameter Encyclopedia 工学地球自转参数释 earth rotation parameter; ERP地球自转参数指极移、日长变化或世界时与协调世界时之差UT1-UTC，常用来反应地球自转的变化，它与岁差、章动一起构成地球定向参数（EOP），是实现天球坐标框架与地球坐标框架相互转换的必要参数。 Astronomy earth rotation parameter缩写：ERP。地球自转参数
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