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1·The lights prevent production of a particular type of nitrogen-oxide molecule known as a nitrate radical, which forms from reactions of nitrogen dioxide with ozone.

这些照明灯阻止了一种特殊类型的二氧化氮水分子——它被认为是一种硝分子团——的生成，而二氧化氮水分子则是二氧化氮和臭氧的反应物。

2·Changing the type of lighting wouldn't have much impact, the scientists suspect, unless cities would use red lights, which don't interfere with nitrate radical formation.

改变光线的种类将不会对环境改善产生太大的影响，科学家质疑道，除非城市将使用红色光线来阻止硝酸盐造成的激变。

3·The only quick solution, says the scientists working at NOAA, would be to swap out all the lamps with red lights, which wouldn't interfere with nitrate radical formation.

工作的科学家们说，唯一的快速解决办法是用红灯替换这些灯，红灯可能不会妨碍硝酸根的生成。

4·Heated in water bath, uranyl ion and nitrate radical adsorbed on resin are replaced into solution by sodium bisulfate, then are determined by titanous method and spectrophotometry, respectively.

在水浴加热条件下，用硫酸氢根将吸附在树脂上的铀酰离子和硝酸根离子置换到液相中，之后分别采用亚钛法、分光光度法进行测定。

5·Dimethylpyrazine reacted with phenylacetic acid, silver nitrate and ammonium persulfate through a radical hydrocarbylation mechanism to yield 5 benzyl 2,3 dimethylpyrazine.

以过硫酸铵和硝酸银为自由基引发剂 ，以 2 ，3 二甲吡嗪和苯乙酸为原料 ，首次采用自由基烃基化反应合成 5 苄基 2 ，3 二甲吡嗪。