1.SCR reduces oxides of nitrogen, the smog precursor known as NOx, by injecting urea periodically into the exhaust system.
SCR可以降低氮氧化物排放，通过定期向排气系统喷射尿素来降低氧化氮。
2.An optimal solution of the system Nox emission, minimum load rejection, system fuel cost and system active power losses result.
系统氮氧化物排放的一个最佳方案，极小的装载拒绝、系统燃料费用和系统活动电源损失发生。
3.ozone is not directly emitted from any source , and is formed under photochemical reaction between nox and voc under sunlight.
臭氧并非直接由污染源排放，而是由氮氧化物与挥发性有机化合物在阳光下产生光合化学反应所形成的。
4.NOx levels are up to 70% lower than conventional oxy-gas burners and up to 50% lower than conventional oxy-oil burners.
氮氧化物生成量与常规全氧助燃燃气燃烧器相比最高可降低70%，与常规全氧助燃燃油燃烧器相比最高可降低50%。
5.Emissions of diesel engine cause serious harm to environment because of including a great deal of particulate, NOx and hydrocarbon.
柴油机的尾气中颗粒物、氮氧化物和碳氢化合物含量的很高，对环境造成了严重危害。
6.In the recent years, sunlit snow and ice has been proved to be an important NOX source in the polar boundary layer.
近年来，人们认识到冰雪在光照下释放NOx是极地大气边界层NOx的一个重要来源。
7.The approach seeks to minimize the system Nox emission function during emergencies.
在紧急状态期间，方法寻求使系统氮氧化物排放作用减到最小。
8.Of special concern are the oxides of nitrogen, called NOx; the oxides of sulfur, called SOx; and "particulate matter. "
特殊关注中有氮氧化物（NOx）；硫氧化物（SOx）和“颗粒物”。
9.The results showed that, the lower combustible material in fuel gas is, the lower the flame temperature and NOx emission are.
结果表明，燃气中可燃物浓度越低，火焰温度越低，氮氧化物生成量越少；
10.These "conventional" pollutants remain in the atmosphere for only a short time.
因为这些“传统”的污染物（SOx，NOx）在大气范围内存在的时间很短。