Question

求翻译（中译英）

近些年来，由于配备了柴油共轨系统，柴油车动力更强大，更省油耗，柴油机在汽车中的应用日益广泛。但是柴油车的尾气排放，尤其是氮氧化物和颗粒物的排放量要远远大于汽油车，严重污染了我们生活的环境，随着排放国标的要求日趋严格，如何降低柴油汽车尾气排放污染物成了一个大问题。
由于燃料原料和发动机本身的限制，要通过机内净化尾气非常困难，因此，SCR尾气后处理系统就诞生了。该系统主要利用一定量的高压喷射的催化剂（尿素水溶液）与汽车尾气在SCR催化器内发生化学和物理反应，达到降低氮氧化物排放的作用。
目前SCR后处理技术主要应用在排量大于2.5升的大型或重型车上。使用SCR后处理技术后，能使欧Ⅵ柴油车达到欧Ⅵ的排放标准。与其他欧Ⅵ应用技术相比，可节省燃油5%~10%。起到了节能环保的目的。

Answer 1

In recent years, as with a diesel common rail systems, diesel-powered vehicles more powerful, cheaper fuel, diesel engines in automobiles has been used widely. However, diesel exhaust emissions, especially nitrogen oxides and particulate matter emissions is much larger than gasoline vehicles, serious pollution of the environment we live in, with the increasingly stringent emission requirements of national standard, how to reduce diesel vehicle emissions of pollutants into a big problem.
Raw materials and the engine due to fuel their own limitations, to purify the exhaust gas through the machine is very difficult, so, SCR exhaust gas aftertreatment system is born. The system used a certain amount of high-pressure injection of the catalyst (urea solution) and the SCR catalytic converters in automobile exhaust in chemical and physical reactions, to reduce the role of nitrogen oxide emissions.
SCR is currently the main post-processing techniques used in large-scale displacement of 2.5 liters or greater than the heavy-duty vehicles. Post-processing using the SCR technology, enables the European Ⅵ Ⅵ diesel vehicles meet emission standards in Europe. And compared to other European Ⅵ application technology, which can save fuel by 5% -10%. Played an energy saving purposes.

Answer 2

In recent years, due to equipped with diesel common rail diesel power system, more powerful, more province oil consumption, diesel engine has been used increasingly in the car. But diesel emission, especially nitrogen oxides and particulates emissions is more than gasoline vehicles, causing serious pollution of the environment we live in, with the gb standard request strictly on emissions, how to reduce diesel car exhaust the discharge of pollutants is a big problem. Because fuel materials and limitation of the engine, want to pass inside machine purify exhaust very difficult, therefore, SCR exhaust gas aftertreatment systems was born. The system mainly using a certain amount of high-pressure jet catalyst (urea aqueous) and automobile exhaust in SCR in TWC happen chemical and physical reaction to reduce emissions of nitrogen oxides role. Currently SCR after-treatment technology is mainly applied in emissions exceeded 2.5 litres of large or heavy cart. Use SCR after-treatment technology, can make Ⅵ engages the uefa euro Ⅵ discharge standards. With other European Ⅵ application technology compared, can save fuel 5% ~ 10%. Played an energy-saving purpose.

Answer 3

In recent years, with a system of diesel fuel, the stronger, more to save power, fuel engines in the application of increasing diesel oil. but the 尾气 discharge, and especially 氮氧化物 and particulate matter will be much more gas emissions. serious pollution in our living environment, with the requirements of the emission 国标 is strict, reducing diesel car 尾气 release pollutants into a big problem.
Owing to fuel the engine itself raw materials and restrictions, the purification 尾气 very difficult, therefore, scr 尾气 after processing systems was born. the system of a major catalyst of a jet of water solution （ urea ） 尾气 scr with the car in the act within the chemical and physical reactions, to reduce emissions of 氮氧化物.
At present, scr after processing applications than 2.5 排量 major in a large or a heavy wagon. the use of scr after processing, the euro Ⅵ diesel car reached the emission standards. the european Ⅵ with other european Ⅵ application of technology to save fuel 5% ~ 10%. on the purpose of the energy

Answer 4

这也太长了。分数少了