crotonylene 📖 中文释义 [化] 巴豆炔; 2-丁炔 📘 English Definition(英文释义) n. A colorless, volatile, pungent liquid, C4H6, producedartificially, and regarded as an unsaturated hydrocarbon of theacetylene series, and analogous to crotonic acid. ← crotonyl chloride C 字母词表 crotonylidene →