英语词汇mean tropical year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	mean tropical year
释义	mean tropical year 简明释义平回归年网络释义 1 ?平回归年 ... mean tropic range 平均回归潮差 mean tropical year 平回归年 mean value 平均值 ... 短语 1 mean solar time tropical year 平回归年双语例句 1 The Julian calendar approximated the mean tropical year as 365.25 days and proposed 366-day leap years for every one divisible by four. 儒略历将太阳年划为365.25天，闰年366天，每四年一次。
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