英语词汇“allene”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	allene
释义	al·lene \ˈaˌlēn\ noun (-s) Etymology: International Scientific Vocabulary, contraction of allylene 1. : a gaseous hydrocarbon CH₂ = C = CH₂ — called also propadiene, sym-allylene 2. : a diolefin with its two double bonds in adjacent positions
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