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单词
sidereal time
释义
sidereal time
noun
1
:
time based on the sidereal day
2
:
the hour angle of the vernal equinox at a place
Example Sentences
Recent Examples on the Web
The sky chart is a disk that rotates at a speed of
sidereal time
(23 hours, 56 minutes and 4 seconds).
Roberta Naas,
Forbes
, 7 Apr. 2021
Word History
First Known Use
1765, in the meaning defined at sense 1
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更新时间:2024/9/23 6:30:10