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单词
arcsec
释义
Word Frequency
arcsec
(
ˈɑːksɛk
)
or
arcsecond
(
ˈɑːkˌsɛkənd
)
noun
1
⁄
3600
of a degree of an angle
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up-close-and-personal
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更新时间:2025/12/16 0:52:46