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单词
sidereal year
释义
sidereal year
美
/ sa??d?ri?l j?r /
简明释义
恒星年:指地球绕太阳一周所需的时间,以地球相对于恒星的位置来计算,约为365.25636天。
专业释义
1
天文学
恒星年(等于365天6小时又10分钟)
恒星年
2
地球科学
恒星年
3
测绘科学技术
恒星年
随便看
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更新时间:2025/8/14 9:57:46