The surface acidic properties of heteroatom-containing(M)AlPO_4-5(M=Si,Mg,Co)have been studied by means of Temperature Programmed Desorption(TPD)and Infrared spectroscopy(IR).是什么意思_The surface acidic properties of heteroatom-containing(M)AlPO_4-5(M=Si,Mg,Co)have been studied by means of Temperature Programmed Desorption(TPD)and Infrared spectroscopy(IR).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句