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1·The octane number of gasoline and cetane number of diesel was slightly affected.

汽油辛烷值和柴油十六烷值变化不大，柴油实际胶质降低。

2·The influence of cetane number on the ignition and combustion of diesel fuel ind. i. diesel engine is briefly reviewed.

本文论述了柴油十六烷值对直喷式柴油机着火和燃烧特性的影响；

3·It is a supplementary tool for predicting cetane number with considerable accuracy when used with due regard for its limitations.

这是一个具有很大准确性的预测十六烷值的辅助工具，但应适当注意到其局限性。

4·The significance, properties and characteristics, action mechanism and classification of cetane number improver are introduced systematically in this paper.

就柴油十六烷值改进剂的种类、作用机理及其研制的重要意义做了综述，介绍了部分十六烷值改进剂的性能特点。

5·According to the development tendency of diesel product quality, diesel oils will focus on lower sulfur and aromatic contents along with higher cetane number.

从柴油产品质量的发展趋势看，柴油油品向着低硫、低芳烃、窄馏分、高十六烷值的方向发展已成为必然。

6·Combustion was improved and HC emission was reduced at cold modes sudden loading operation conditions by using better volatile fuel with the same cetane number.

采用具有相同十六烷值、挥发性好的燃料，可有效改善冷态增负荷工况下的燃烧，降低HC排放。

7·The numerical result calculated by the formula for estimating the cetane number of distillate fuels from American Petroleum Institute (API) gravity and midboiling point.

用美国石油学会比重度和中沸点估算馏分燃料十六烷值公式计算得到的数值结果。

8·Effects of cetane number improver, surfactants and organometallic compounds as diesel fuel additive on soot emission reduction were investigated with a 6120q di diesel engine.

采用6120 Q直喷式柴油机对十六烷值改进剂、表面活性剂和有机金属化合物作为柴油添加剂降低柴油机碳烟排放的规律进行了试验研究。