| 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. | Micro screen titanium laser ammonia and nitrogen elimination facility 微过滤钛光?除氨氮排泥槽 |
| 4. | They say much of the soil lacks enough phosphorus and nitrogen 他们认为大部分的土地缺乏磷和氮。 |
| 5. | New processes of biological phosphorus and nitrogen removal in sewage 污水生物脱氮除磷工艺的新进展 |
| 6. | They say much of the soil lacks enough phosphorus and nitrogen 他们表示很多土壤中缺乏充分的磷和氮。 |
| 7. | Commissioning of kl - 15a type oxygen - and nitrogen - producing vehicle at tableland 型制氧制氮车高原试车 |
| 8. | Removal of phenol and nitrogen from coal gasification washing wastewater 煤气洗涤废水除酚脱氮技术研究 |
| 9. | On process improvement of a small oxygen and nitrogen production plant 某小型制氧制氮设备流程改进的探讨 |
| 10. | Physio - ecological response of spring wheat root to water and nitrogen 小麦根系对水分和氮肥的生理生态反应 |