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。

Bio-fuel has the advantages of less emission, higher cetane number, and no carcinogens produced.

生物柴油具有排烟少、 十六烷值高、且不会产生致癌物质等优点。

Bio - fuel has the advantages of less emission, higher cetane number, and no carcinogens produced.

生物柴油具有排烟少 、 十六烷值高 、 且不会产生致癌物质等优点.

The results show that the fuel cetane number and engine exhaust smoke decrease and engine thermal efficiency improves with adding DMC in diesel fuel.

结果表明，在柴油中添加DMC，燃料十六烷值降低，发动机热效率提高，烟度减小。

The results indicate that the operation region of HCCI engine can be extended by using DME with a high cetane number and CNG with a high octane number.

结果表明，采用高十六烷值燃料二甲基醚和高辛烷值燃料天然气，可以拓宽均质压燃的运行工况范围。

The molecular structure of DME doesn't have C-C bond, and contains high proportion of oxygen, high cetane number and good spray characteristics at the same time.

二甲醚的分子结构中不含C-C键，且为含氧燃料，同时具有十六烷值高、雾化特性好等特点。

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。

Cyclohexyl nitrate is an effective cetane number improver for diesel oil.

硝酸环己酯是一种有效的柴油十六烷值改进剂.