methyl acetylenemethylacetylene甲基: methyl; methylium; carbinyl; ...乙炔: ethyne; acetylene二甲基乙炔: butyne; crotonylene甲基乙炔钠: sodium methyl-acetylide甲基戊基乙炔: methyl amyl acetylene下载手机词典可随时随地查词查翻译