However,the conversion of NB was influenced by the presence of DNB,and the deactivation of catalyst became rapid in the presence of DNB.是什么意思_However,the conversion of NB was influenced by the presence of DNB,and the deactivation of catalyst became rapid in the presence of DNB.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句