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地球为什么会涨潮和退潮
更新时间: 2020-11-05 00:00:00  

地球上的涨潮或退潮(也就是潮汐),潮汐是由于月球的吸引力造成的。月球对地球的吸引力,造成了涨潮和退潮,这是海水周期性现象,白天为朝,夜晚为夕,所以白天出现的海水涨落称为“潮”,夜晚出现的海水涨落称为“汐”(给夕字加上了三点水)。

关键词: 地球 为什么 涨潮 退潮

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