英语词汇ketene怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	ketene
释义	ketene /ˈkiːtiːn/ noun mass noun 1 Chemistry a pungent colourless reactive gas, used as an intermediate in chemical synthesis 【化】乙烯酮。 1.1 Chem. formula: CH₂=C=O. 化学分子式：CH₂=C=O. 1.2 count noun any substituted derivative of this 烯酮类。词源 early 20th cent.: from KETONE + -ENE.
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