bu·tyl·ene /ˈbjutḷˌin/
丁烯
bu·tyl·ene /ˈbjutḷˌɪn/ 名詞
丁烯
Bu·ty·lene n.
1. Chem. Any one of three metameric hydrocarbons, C4H8, of the ethylene series. They are gaseous or easily liquefiable; -- called also butene.
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butylene
n : any of three isomeric hydrocarbons C4H8; all used in making
synthetic rubbers [syn: butene]