- trademark an alloy containing iron (63.8 per cent), nickel (36 per cent), and carbon (0.2 per cent). It has a very low coefficient of expansion and is used for the balance springs of watches, etc
| 单词 | invar |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 In•var (in vär′),USA pronunciation [Trademark.]
Collins Concise English Dictionary © HarperCollins Publishers:: Invar /ɪnˈvɑː/ n
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