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单词 θ1344
释义
the world > the universe > cosmology > astronomy > [noun] > radio astronomy (5)
radio astronomy1948

The branch of astronomy that deals with the study and interpretation of radio waves reaching the earth from space, and (formerly) with the…

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— person (1)
— method (1)
— unit used in (2)
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更新时间:2024/12/24 3:12:58