“halogen”的概念、定义、翻译、参考文献-科学参考

单词	halogen
释义	halogen Encyclopedia 理学卤族元素释 halogen卤素包括氟（F）、氯（Cl）、溴（Br）、碘（I）、砹（At）五种化学元素。属周期系ⅦA族（17族）。它们都以典型的盐类形式存在于自然界，所以称为卤族元素，含义是成盐元素，简称卤素。其中砹是放射性元素。 Physics halogen卤素｛化｝ Chemistry ＞无机化学＞无机化学基本概念与无机化合物＞释义 halogen卤素
随便看	ultra-precision machining of optical spherical and freeform surface ultra-precision manufacturing of optical surfaces ultra-precision mechatronics system ultra-precision opto-mechanical system ultraproduct ultraproduct technique ultraproduct theorem ultra-pure materials ultrapure water ultrapurification of materials ultraradical ultrarapid lens ultraray ultrarays ultra-red ultraregular space ultraregular topology ultrarelativistic ultra-relativistic electron ultra-relativistic particle ultrarelativistic particle ultra-relativistic quantum molecular dynamics model ultra-relativistic quantum molecular dynamics model, UrQM ultrareliable ultra-scan

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