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  1. nitrogen

    • IPA[ˈnītrəjən]

    美式

    • n.
      the chemical element of atomic number 7, a colorless, odorless unreactive gas that forms about 78 percent of the earth's atmosphere. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (−195.8°C) and is used as a coolant.
    • noun: nitrogen

    • 相關詞
    • n.
      the series of processes by which nitrogen and its compounds are interconverted in the ...

    Oxford American Dictionary

    • n.
      a drowsy state induced by breathing air under higher than atmospheric pressure, for example, in ...

    Oxford American Dictionary

    • n.
      any of a group of organic compounds containing the group —N(CH2CH2Cl)2. They are powerful ...

    Oxford American Dictionary

    • n.
      the series of processes by which nitrogen and its compounds are interconverted in the ...

    Oxford Dictionary

    • n.
      the chemical processes by which atmospheric nitrogen is assimilated into organic compounds, ...

    Oxford American Dictionary

    • n.
      another term for nitric oxide

    Oxford American Dictionary

    • n.
      a colourless toxic gas formed in many reactions in which nitric acid is reduced. It reacts ...

    Oxford Dictionary

    • n.
      a drowsy state induced by breathing air under pressure, e.g. in deep-sea diving.

    Oxford Dictionary

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    • IPA[ˈnʌɪtrədʒ(ə)n]

    英式

    • n.
      the chemical element of atomic number 7, a colourless, odourless unreactive gas that forms ...

    Oxford Dictionary