invar

英 [ɪn'vɑː] 美 [ɪn'vɑː]

• n. 因钢；镍铁合金

英英释义

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

词汇搭配

• invar steel 殷钢
• invar tape 殷钢卷尺
• invar wire 殷钢线尺,因瓦尺...
• invar plotting scale 殷钢尺