| 单词 | crotonylene |
| 释义 | > as lemmasˈcrotonyˌlene ˈcrotonyˌlene n. a hydro-carbon, C4H6 (liquid below 15° C.), homologous with allylene. ΚΠ 1880 E. Cleminshaw tr. C. A. Wurtz Atomic Theory 264 The tetratomic radicals, acetylene, allylene, and crotonylene, are known in a free state. < as lemmas |
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