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单词 mini-hole
释义

mini-hole

/ˈmɪnɪhəul/
noun
1 Astronomy = mini-black hole.
2 Meteorology. A highly localized region of temporary ozone depletion in the upper atmosphere.

Origin

1970s; earliest use found in Scientific American. From mini- + hole, after black hole.

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更新时间:2024/12/23 5:42:48