“J·H”概念、定义、翻译-科学时代

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

单词	J·H
释义	请查阅佩恩--J·H
随便看	helium embrittlement helium flash helium fusion process helium gas distribution board helium ion helium leak detector helium leak detector helium leak test helium leak test helium liquefier helium main-sequence helium mass spectrographic method helium mass-spectrometer detecting system helium mass spectrum leak detection helium method helium-neon discharge tube helium neon laser helium-neon laser helium-neon laser（He-Ne laser） helium-neon maser helium nucleus helium-oxygen diving helium permeation helium permeation test helium-poor star