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单词 chemosphere
释义

Definition of chemosphere in English:

chemosphere

nounˈkɛməsfɪəˈkiːməsfɪə
  • A region of the upper atmosphere in which photochemical reactions take place, usually regarded as corresponding to the upper stratosphere and the mesosphere.

Origin

1950s; earliest use found in Newsweek.

Definition of chemosphere in US English:

chemosphere

noun
  • A region of the upper atmosphere in which photochemical reactions take place, usually regarded as corresponding to the upper stratosphere and the mesosphere.

Origin

1950s; earliest use found in Newsweek.

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更新时间:2025/6/20 2:31:08