Car exhaust contains nitrogen oxide.

汽车尾气中含有氮氧化物。

Nitrogen oxide is harmful to human health.

氮氧化物对人体健康有害。

The factory emitted a large amount of nitrogen oxide.

工厂排放了大量的氮氧化物。

The egr system helps reduce nitrogen oxide emissions.

排气再循环系统有助于减少氮氧化物的排放。

The government is taking measures to reduce nitrogen oxide emissions.

政府正在采取措施减少氮氧化物的排放。

Nitrogen oxide is one of the main components of air pollution.

氮氧化物是空气污染的主要成分之一。

This considerably reduces combustion noises and cuts nitrogen oxide emissions.

这降低了燃烧的噪音和减少了氮氧化物的排放。

Fighting nitrogen oxide on the streets is the latest twist.

在香港,水泥板上涂了二氧化钛,可以去除90%的氮氧化物.

The SCR catalytic converter uses the ammonia to transform nitrogen oxide into nitrogen and water.

选择性催化转化器利用氨气把氮氧化物转化为氮气和水.

Meanwhile, the incomplete combustion of gas in motor vehicles releases nitrogen oxide.

与此同时，机动车内未完全燃烧的汽油也会释放氮氧化物。