The active sites on Cu-ZnO-Al_2O_3 catalyst for methanol synthesis were discussed by relating the catalytic activity data with physico-chemical parameters obtained from X-ray diffraction, ESCA, Auger and BET methods.是什么意思_The active sites on Cu-ZnO-Al_2O_3 catalyst for methanol synthesis were discussed by relating the catalytic activity data with physico-chemical parameters obtained from X-ray diffraction, ESCA, Auger and BET methods.在線翻譯_英語_讀音_用法_例句