英语语法分析

Cetane index are higher than the value in the contract.

十六烷指数高于合同指标；

Cetane improver. Makes the engine run better at higher compression Settings.

碳氢化合物的改进物。使引擎在高压缩比时运转较为顺畅。

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。