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galactic year

查词链接:https://www.dute.org/dict/galactic_year复制链接
银河年,星系年
查看英英释义
abstract:
The galactic year, also known as a cosmic year, is the duration of time required for the Solar System to orbit once around the center of the Milky Way Galaxy.Cosmic Year, Fact Guru, University of Ottawa Estimates of the length of one orbit range from 225 to 250 million "terrestrial" years.

网络释义
银河年
... galactic radio noise 银河射电噪声... galactic year 银河年 galactic noise 银河噪音,来自银河系...
常用短语
* 以上查询结果来自于网络,仅供参考。
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