柴油机气缸内滞燃期的确定具有很大的意义。
It is very significant to define the ignition delay in the cylinder of Diesel Engines.
随压缩比的降低，滞燃期延长，HC排放明显增加。
With the decrease of compress ratio, HC emissions were increased and the ignition delay was prolonged.
对气缸内参数的分析表明，滞燃期缩短，最高燃烧压力降低，燃烧过程较为柔和。
The analysis of combustion parameters in cylinder shows that the ignition delay reduces, peak combustion pressure decreased and combustion process becomes more smooth.
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