This paper presented the simultaneously determine the nitrate nitrogen and the nitrous nitrogen in drinking water by UV.
提出了紫外分光光度法同时测定生活饮用水中的硝酸盐氮和亚硝酸盐氮的含量。
There, in a process called denitrification, microbes convert the nitrogen into nitrous oxide (also called laughing gas) and an inert gas called dinitrogen.
在那里，经称为脱氮的过程，微生物把氮转化为一氧化二氮(又称笑气)和一种称为二氮的惰性气体。
They found that the amount of nitrous oxide produced in streams is related to human activities that release nitrogen into the environment, such as fertilizer use and sewage discharges.
他们发现，溪流中一氧化二氮的数量与人类活动释放到环境中的氮有关，如使用化肥和污水排放。
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