英语词汇“helium 4”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	helium 4
释义	helium 4 he·li·um 4 (hē'lē-ŭm), The common helium isotope, making up 99.999% of natural helium; it is emitted in the form of alpha rays (which are helium nuclei), from a variety of radionuclides.
随便看	germinator germinators germine germiness germinoma germiparity germi, pietro germiston germiston fresh meat germiston, gauteng germiston virus germ-killer germ layer germ layers germ layer theory germ-layer theory germless germ-like germ line germ-line germline germ line cell germ line cells germ-line gene therapy germline mutation

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

helium 4