Suitable for Euro 4 or 5 engines from certain manufacturers who fit particle trapping filters (DPF) to be able to meet this emission standed.
适用于那些带有颗粒过滤（DPF）的欧4或欧5发动机达到排放标准。
A diesel engine bench for trapping diesel particle by filter was established.
实验室搭建了捕集柴油机颗粒的发动机台架。
A one-dimensional unsteady model was developed to simulate the trapping of fine particles by a wall-flow filter by simulating the flow field and particle layer distribution in a channel.
针对壁流式过滤体捕集微细颗粒物的过程，建立了描述通道内流场和颗粒层分布的一维非稳态模型。
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