环境保护毕业论文英文

如果英文水平不好的话，而且又觉得翻译软件太机器化，还是建议你去请教你们的英语老师，别害怕或者不好意思，这时候就需要脸皮厚一点。而且大学老师大部分都是比较有素质的，不会难为你的。

这个回答任务太艰巨，而且才5分，别说我不会英文，就算会可能也懒得帮你，所以放弃！估计你不会得到你满意的答案的，去找个外语系的同学帮帮忙好了

Because the diesel engine has the advantages of high thermal efficiency, high power, low fuel consumption, so it is widely used in the field of agriculture, industry, national defence construction. In recent years, with the awareness of environmental protection, the world standard for exhaust emissions from diesel engine becomes more and more strict. Through scientific research, CO and HC in diesel emissions than gasoline engines much less, NOx emissions and gasoline engine similar to, but more exhaust particles, and the diesel engine combustion mechanism. This paper discusses the main measures to clean diesel particulate emissions, engine cleaning technology, external purification technology, as well as the present situation of diesel engine emission and control technology and its development trend.