根据国产车用柴油机的排气烟度现状，论证了采用排气微粒过滤器的必要性。
The necessity of introducing exhaust particulate trap in domestic automotive diesels was discussed on the basis of the present exhaust smoke situation.
通过氧化后处理系统对柴油机排放影响的试验，探索后处理系统对发动机排气烟度，加速烟度的影响。
Investigating the effect of aftertreatment system on exhaust smoke and accelerating smoke by the experiment of aftertreatment.
试验结果表明，当这种喷油器运用于涡流室式柴油机时，可以起到降低发动机燃油消耗与排气烟度的作用；
The results showed that, when the mixture was used to the diesel engine with swirl chamber the engine performance including fuel economy and smoke emission could be improved remarkably.
E10及E15的理化性质与普通柴油接近，柴油机动力性能下降幅度不大，油耗增加不多，排气烟度却有明显的改善。
The character of E10 and E15 are close to the ordinary diesel oil, motive force performance is not big in fall, the oil consumption has a little increase than the ordinary diesel oil, …
本文以试验研究为基础，对柴油机燃用乳化油的节能效果，以及对柴油机起动性能、振动、噪声、排气成份和烟度等做了试验研究，并对乳化油生成及节能机理进行了论述。
Based on the tests for emulsified diesel oil on a diesel engine, this paper presents test research on economical results, startability, vibration, noise, exhaust gas constituent and smoke.
开发了一种柴油机排气净化装置，试验表明该装置对减少柴油机烟度具有较好的效果。
The trial indicates that the equipment possesses good effects on decreasing diesel engine's smoke.
发动机排气温度和烟度明显降低，排放指标也在一定程度上得到了改善。
When using emulsified fuels the engine emissions are improved to a certain extent.
发动机排气温度和烟度明显降低，排放指标也在一定程度上得到了改善。
When using emulsified fuels the engine emissions are improved to a certain extent.
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