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单词
leap second
释义
leap second
n.
(名词)
A second of time, as measured by an atomic clock, added to or omitted from official timekeeping systems annually to compensate for changes in the rotation of Earth.
闰秒:由原子钟计量的,每年向官方的计时系统中增加或扣除的一秒时间,以补偿地球自转过程中产生的变化
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更新时间:2026/6/18 0:19:58