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порядковый номер meaning in English

RussianEnglish
порядковый номер noun
{m}

atomic number [atomic numbers](number of protons)
noun
[UK: ə.ˈtɒ.mɪk ˈnʌm.bə(r)] [US: ə.ˈtɑː.mɪk ˈnʌm.br̩]

ordinal number [ordinal numbers](arithmetic: number used to denote position in a sequence)
noun
[UK: ˈɔː.dɪn.l̩ ˈnʌm.bə(r)] [US: ˈɔːr.dən.l̩ ˈnʌm.br̩]