999英语网 英语单词
Invar的音标发音
Invar
英式发音：[n'vɑr]
美式发音
(noun.) an alloy of iron and nickel having a low coefficient of thermal expansion; used in tuning forks and measuring tapes and other instruments.
布兰卡德录入
(noun.) an alloy of iron and nickel having a low coefficient of thermal expansion; used in tuning forks and measuring tapes and other instruments.
布兰卡德录入