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单词 perminvar
释义

Definition of perminvar in English:

perminvar

noun ˈpəːmɪnvɑː

  • 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-.

Definition of perminvar in US English:

perminvar

nounˈpəːmɪnvɑː

  • 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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更新时间：2025/7/1 19:50:49