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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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