| 单词 | alkanes |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔alkane〕Alkanes, such as butane and methane, are very flammable.丁烷，甲烷等烷烃均为易燃物品。剑桥高阶〔alkane〕Methane and propane are alkanes.甲烷和丙烷是链烷。牛津高阶〔alkylation〕A process in which an alkyl group is added to or substituted in a compound, as in the reaction of alkenes with alkanes to make high-octane fuels.烷化作用，烷基取代：向一种化合物中添加或用一个烷基团替代的过程，如用烯烃和烷烃发生反应以制得高辛烷值燃料美国传统 |
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