英语词汇“diurnal motion”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	diurnal motion
释义	diurnal motion diurnal motion n (Astronomy) motion that occurs during the day or daily, such as the diurnal rotation of the celestial sphere diurnal motion diurnal motion The apparent daily motion of celestial bodies across the sky from east to west. It results from the Earth's rotation from west to east, the axis of the diurnal motion coinciding with the Earth's axis. The apparent path of a celestial body arising from diurnal motion is a circle parallel to the celestial equator and is termed a diurnal circle. diurnal motion [dī′ərn·əl ′mō·shən] (astronomy) The apparent daily motion of a celestial body as observed from a rotating body.
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