英语词汇“radon”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	radon
释义	radon noun uncountable chemistry UK /ˈreɪdɒn/ DEFINITIONS1 1 a chemical element that is a rare radioactive gas. Its symbol is Rn. Synonyms and related words Radioactivity and radiation alpha particle atomic becquerel Synonyms and related words Gases acetylene ammonia argon Synonyms and related words Chemical elements actinium alkali metal aluminium radon noun uncountable chemistry US /ˈreɪdɑn/ DEFINITIONS1 1 a chemical element that is a rare radioactive gas. Its symbol is Rn. Synonyms and related words Radioactivity and radiation alpha particle atomic becquerel Synonyms and related words Gases acetylene ammonia argon Synonyms and related words Chemical elements actinium alkali metal aluminum
随便看	freshness fresh out of something freshwater fret fretful fretsaw fretwork freudian freudian slip frexit fri. friable friar friary fricassee fricative friction frictionless friday fridays for future fridge fridge-freezer fridging fried friend

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