| 释义 |
ethylene/ˈeθili:n, -θ(ə)l-/n. Chem. a gaseous hydrocarbon of the alkene series, occurring in natural gas and used in the manufacture of polythene also called 亦称作 ethene Chem. formula 化学分子式 : C2H4 【化】乙烯，乙烯基(存在于天然气中，用来生产聚乙烯)□ ethylenic /-ˈli:nik/ adj. |