| 释义 |
DEFINITIVE EXAMPLES 权威例句〔emission〕Britain agreed to cut emissions of nitrogen oxide from power stations.英国同意减少发电站氧化氮的排放量。朗文当代〔gas〕A gaseous anesthetic, such as nitrous oxide.气体麻醉剂：一种气态的麻醉剂，如二氧化氮美国传统〔nitrogenase〕An enzyme of nitrogen-fixing bacteria that activates the conversion of nitrogen to ammonia.定氮酶：在固氮细菌中催化氮转化成氨的一种酶美国传统Air pollutants, such as sulphur dioxide and nitrogen dioxide, are derived mainly from the combustion of fuels in industrial plants and vehicle engines.二氧化硫和二氧化氮等空气污染物主要源于工厂和汽车引擎中燃料的燃烧。剑桥国际 |