ethyl butyl ketone,3-heptanoneethylbutyl ketone乙基: aethylis; ethyl; ethyl group丁基: butyl; butyl group甲: the first of the ten Heavenl ...酮: ketone; alkone; ket-; -one甲基丁基甲酮: methyl butyl ketone下载手机词典可随时随地查词查翻译