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英语翻译水星的大气极为稀薄,昼夜温差很大,白天表面温度可达427度以上,黑夜最低温度可降到零下173度左右.水星的自转周

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英语翻译
水星的大气极为稀薄,昼夜温差很大,白天表面温度可达427度以上,黑夜最低温度可降到零下173度左右.
水星的自转周期为58日,公转周期约为88天.自转方向与公转方向相同.由于自转周期与公转周期很接近,所以水星上的一昼夜比水星自转一周的时间要长得多.它的一昼夜为我们的176天,白天和黑夜各88天.因此,在水星上,“一天”等于“两年”.
Mercury has extremely thin atmosphere.Therefore,it has great temperature difference between days and nights.
The temperature of its surface can rise above 427 degree celcius in daytime while it can be at a minimum of around -173 (minus 173) degree celcius at night.
Mercury rotation and revolution period,which are on the same direction,are around 58 days and 88 days respectively.Since the rotation period are similar to the revolution period,thus one day on Mercury is much longer than its rotation.One day on Mercury is about 176 days on the Earth,i.e.88 mornings and 88 evenings.Hence,on Mercury,1 day equals 2 years.