英语词汇“perminvar”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	perminvar
释义	perminvar /ˈpəːmɪnvɑː/ noun Any of a series of alloys containing nickel, iron, and cobalt which have an approximately constant magnetic permeability over a range of field strengths. Origin 1920s; earliest use found in The Official Gazette. From perm- + invar-.
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perminvar