模拟计算了各种工况下的发动机性能：怠速工况降低了残余废气系数，提高了进气流速，稳定性得到改善；
We simulate engine performance in various operating conditions:in idle condition, it reduces the residual gas coefficient and increases airflow velocity, so that idle stability is improved.
在废气残余系数和排气管氧化模型中采用经验公式。
The residual hydrocarbon and exhaust hydrocarbon oxidation models use experience formula.
在废气残余系数和排气管氧化模型中采用经验公式。
The residual hydrocarbon and exhaust hydrocarbon oxidation models use experience formula.
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