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1·Sulphur dioxide is a pollutant and a major contributor to acid rain.

二氧化硫是一种污染物，并且是形成酸雨的主要因素。《牛津词典》

2·Nitrogen dioxide is a pollutant emitted by automobiles.

二氧化氮是汽车排放的一种污染物。

3·Sulfur dioxide, a major contributor to acid rain, is an especially serious pollutant because it diminishes the respiratory system's ability to deal with all other pollutants.

二氧化硫是酸雨的主要成因之一，它是一种特别严重的污染物，因为它会降低呼吸系统处理其他污染物的能力。

4·The peroxyacetyl nitrate is an important atmospheric pollutant.

过氧乙酰硝酸盐是一种重要的大气污染物。

5·Coal itself is a heavy pollutant.

煤本身就是一种严重的污染物。

6·PM affects more people than any other pollutant.

可吸入颗粒物对人的影响要大于其他任何污染物。

7·Carbon dioxide may not be a typical air pollutant.

二氧化碳可能不是一种典型的污染物。

8·Almost 7 tons of ammonia emissions, a major air pollutant.

差不多7吨的氨气排放，而氨气是一种主要的空气污染物。

9·As an air pollutant, NO2 has several correlated activities.

作为一种空气污染物，二氧化氮具有几个相关联的活动。

10·Burning a tyre, by contrast, produces sulphur dioxide, a noxious pollutant.

相反，燃烧轮胎会产生有害的污染物，二氧化硫。

污染物

1·Sulphur dioxide is a pollutant and a major contributor to acid rain.

二氧化硫是一种污染物，并且是形成酸雨的主要因素。《牛津词典》

2·Nitrogen dioxide is a pollutant emitted by automobiles.

二氧化氮是汽车排放的一种污染物。

3·Sulfur dioxide, a major contributor to acid rain, is an especially serious pollutant because it diminishes the respiratory system's ability to deal with all other pollutants.

二氧化硫是酸雨的主要成因之一，它是一种特别严重的污染物，因为它会降低呼吸系统处理其他污染物的能力。

4·The peroxyacetyl nitrate is an important atmospheric pollutant.

过氧乙酰硝酸盐是一种重要的大气污染物。

5·Burning a tyre, by contrast, produces sulphur dioxide, a noxious pollutant.

相反，燃烧轮胎会产生有害的污染物，二氧化硫。

污染物质

1·The concentration of pollutant in space depends on the characteristics of time averaged and turbulent flow.

污染物质浓度的空间变化取决于这一复杂流动的时均特性和紊动特性。

2·They just like a cocktail which consist of all kinds of substances, they have the pollutant that has something with the formation of the acid rain.

它们就像是一杯混合了各种物质的鸡尾酒，同时还包含了与酸雨形成有关的污染物质。

3·With the rapid development of industrial production, chrome has become a main environmental pollutant in the recent years.

近年来，由于工业生产的飞速发展，铬已成为一种主要的环境污染物质。

4·Inclusion of these data also allows them to anticipate the impacts of different growth patterns on compliance with international conventions on pollutant emissions.

这些数据的包含也允许他们预期在污染物质发射上的在符合国际的大会作法上的不同生长的冲击式样。

5·The present invention has the advantages of effective degradation to pollutant in ambient air and indoor organic small molecules such as formaldehyde and phenol.

本发明的优点：有效降解周围空气中的污染物质，对室内的甲醛苯酚等有机有害小分子进行降解。

(1)pollutant discharge污染物排放

(1)pollutant emission污染物排放；污染发散物

(1)atmospheric pollutant大气污染物

(1)pollutant source污染源

(1)chemical pollutant化学污染物

(1)persistent pollutant持久性污染物