| 1. | It is the result of sunlight reacting with hydrocarbons and nitrogen oxides in the atmosphere .
它是阳光与大气中的碳化氢和氧化氮作用的结果。 |
| 2. | One obvious remedy is to reduce emissions of sulfur and nitrogen oxides to the atmosphere .
减少硫氧化物和氮氧化物向大气的排放量是一个有效的治理措施。 |
| 3. | In the spark-ignition engine, recirculating some of the exhaust gas reduces the emission of nitrogen oxides .
在火花点火的发动机中，再循环的一部分废气减少了氧化氮的有害污染。 |
| 4. | Hygienic standard for nitrogen oxides in indoor air
室内空气中氮氧化物卫生标准 |
| 5. | The discharge amount of nitrogen oxide can reduce 30 %
氮的氧化物排放量减少30 % 。 |
| 6. | Test methods for colour fastness to nitrogen oxides
耐氧化氮染色牢度试验方法 |
| 7. | Methods for determination of nitrogen oxides in flue gas
废气中氧化氮含量的测定方法 |
| 8. | Textiles - test for colour fastness to nitrogen oxides
纺织品耐氧化氮色牢度试验方法 |
| 9. | Clinical analysis on 48 cases of acute nitrogen oxide poisoning
急性氮氧化物中毒48例分析 |
| 10. | Investigation of a severe acute nitrogen oxide poisoning
一起重度急性氮氧化物中毒事故的调查 |
