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单词 alkene
释义 al·keneBrE /ˈælkiːn/NAmE /ˈælkiːn/ noun (chemistry 化学) any of a series of gases that contain hydrogen and carbon and that have a double bond between two of the carbon (= force of attraction) between two of the carbon atoms 烯;烯烃
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更新时间:2025/8/21 13:42:59