系统工作原理是：DPF过滤柴油机排气中的颗粒物（PM），从而使排放达到相应的标准。
The working principle of the system is: DPF filters the particulate matter (PM) in diesel engine exhaust, to make emission up to certain standard.
伴随着柴油机排放标准的日益严格，柴油机排气后处理愈来愈受到重视。
The diesel engine emissions aftertreatment has received a lot of attentions with increasingly stringent emission standards for diesel engines.
伴随着柴油机排放标准的日益严格，柴油机排气后处理愈来愈受到重视。
The diesel engine emissions aftertreatment has received a lot of attentions with increasingly stringent emission standards for diesel engines.
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