当首循环混合气浓度过浓或者是过稀时,瞬态hc排放迅速增加。
The HC emissions are increased remarkably when the mixture concentration becomes too lean or too rich.
为了满足越来越严格的排放法规和经济性要求,改善柴油机混合气均匀性是有效的措施之一。
In order to meet strict emission regulations and economic demand, it is one of effective means to improve uniformity of mixture of air and fuel in diesel engine.
柴油机的燃烧过程和排放特性,主要取决于柴油机气缸内混合气的形成。
The combustion process and emission characteristics in diesel engine are mainly depended on the mixture formation in cylinder.
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