The synthesis of dibutyl maleate with butyl alcohol and maleic acid as reactants and amidosulphonic acid as catalyst has been studied.是什么意思_The synthesis of dibutyl maleate with butyl alcohol and maleic acid as reactants and amidosulphonic acid as catalyst has been studied.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句