Two different types of dehydrocyclization (DHC) active site, i. e. high temperature active site and low temperature active site, over Pt-Al2O3 catalyst were evidenced by temperature programmed surface reaction method.是什么意思_Two different types of dehydrocyclization (DHC) active site, i. e. high temperature active site and low temperature active site, over Pt-Al2O3 catalyst were evidenced by temperature programmed surface reaction method.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句