英语词汇leap second怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	leap second
释义	leap second 美/ li?p ?sek?nd / 简明释义闰秒：指为了补偿地球自转减慢而添加到协调世界时中的一个插入的秒，以保持协调世界时与太阳时间同步。专业释义 1 天文学闰秒 2 交通运输工程闰秒 3 计算机科学技术闰秒双语例句 1 Why does the world need leap seconds? 为什么世界需要闰秒？ 2 Greenwich Mean Time updated with leap seconds. 用闰表来测定的格林尼治时间。 3 Leap seconds were initially added at least once a year, but have slowed since 1979. 闰秒起先一年至少增加一次，但是自从1979年来就放慢了。
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