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词汇 nitrogen
释义

nitrogen

noun
/ˈnaɪtrədʒən/
/ˈnaɪtrədʒən/
[uncountable]
(symbol N)
  1. a chemical element. Nitrogen is a gas that is found in large quantities in the earth’s atmosphere.氮;氮气Topics Physics and chemistryc1
    Collocations DictionaryNitrogen is used before these nouns:
    • atom
    • fertilizer
    词源late 18th cent.: from French nitrogène (from nitre, from Latin nitrum, from Greek nitron + -gen).
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