nitrogen oxide reduction 基本例句 氧化氮还原 In this study, the performance of the supported metallic oxide catalysts for catalytic reduction of nitric oxide with carbon monooxide as a reducing agent were investigated.本论文主要是研究奈米金属氧化物担体触媒，用于以一氧化碳为还原剂之一氧化氮还原反应。