Di(2 ethylhexyl) phthalate (DOP) was prepared from phthalic anhydride and 2 ethylhexanol via niobium pentoxide catalyzed esterification.是什么意思_Di(2 ethylhexyl) phthalate (DOP) was prepared from phthalic anhydride and 2 ethylhexanol via niobium pentoxide catalyzed esterification.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句