如果真是这样，那么他将把地球看作是球形宇宙的静止的中心，他将解释 天体是如何运动的；太阳年（solar year）和它与太阴月（1unar month）的关系；星盘的设计和使 用；日月食、恒星和二分点的岁差；最后是行星的路线。
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回归 to return to; to retreat; regression (statistics) 回归年 the solar year; the year defined as the period between successive equinoxes 回归热 recurring fever ..
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[solar year] 依据太阳量度的年的长度 [solar energy] 以电磁辐射形式从太阳输送来的能量。如:太阳能电池就是把太阳能直接转变为电能的一种装置 .
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the solar year 阳历年 ; 回归年
apparent solar year 视太阳年
mean solar year 平太阳年
luni-solar year [天] 阴阳年
a solar year 太阳年
nt solar year 视太阳年
以上来源于: WordNet
N →see year
In more northern climes, however, where seasonal agriculture was practised, the solar year became more crucial.
然而，在更北的气候地带，由于实行季节性农耕，回归年变得更加关键。
As the Roman Empire expanded northward, it organised its activity chart for the most part around the solar year.
随着罗马帝国向北扩张，它构建活动图的大部分时间是在太阳年前后。
The calendars that were developed at the lower latitudes were influenced more by the lunar cycle than by the solar year.
在低纬度地区制定的历法受月球周期的影响比受太阳年的影响更大。
NASA hopes that Dawn's year long orbit around Vesta will help scientists learn more about the development of the solar system, and how asteroids and other space objects were created.
VOA: special.2011.07.27
Next year,the solar decathlon will be held in Madrid,Spain.
VOA: special.2009.10.27
"The cost of solar has been dropping on average about 30 percent a year, where the cost of traditional energies has been going up exponentially because the price of fossil fuels is going up,".
VOA: standard.2009.10.27
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