| 单词 | alkylation | 
| 释义 | Word Frequency alkylation(ˌælkɪˈleɪʃən) noun 1.  the attachment of an alkyl group to an organic compound, usually by the addition or substitution of a hydrogen atom or halide group 2.  the addition of an alkane hydrocarbon to an alkene in producing high-octane fuels | 
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