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invar是什么意思

invar

英[ɪn'vɑː] 美[ɪn'vɑ]

n. 不胀钢；

相关单词 Coelinvar elinvar invariability invariable invariablenes invariableness invariables invariably invariance invariance property invariant

英英词典释义

Noun
1. an alloy of iron and nickel having a low coefficient of thermal expansion; used in tuning forks and measuring tapes and other instruments

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