英语词汇“sigma ring”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	sigma ring
释义	sigma ring sigma ring [′sig·mə ‚riŋ] (mathematics) A ring of sets where any countable union of its members is also a member.
随便看	antihomomorphism antihomosexual anti-homosexualism antihormone antihormone immunization antihormones anti-horse thief association anti-hu antibody antihuman antihuman globulin anti-human globulin test antihuman globulin test anti-human granulocyte antibody anti-human immunodeficiency virus anti-humanism antihumanism anti-humanist antihumanist antihumanistic anti-human lymphocyte globulin anti-human mu-opioid receptor anti-human neutrophil cathepsin g anti-human platelet factor 4 anti-human thymocyte globulin anti-human t-lymphocyte serum

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