It is very important to deal with HC emissions during cold-start phase of gasoline vehicles, especially to meet requirements of EURO 3 phase emission regulation.

为满足即将实施密耦催化剂的国家第3阶段排放标准，汽油车排气冷起动问题显得尤为重要。

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At the time of adoption of the Euro 5/6 regulation, its mass-based PM emission limits could only be met by closed particulate filters.

在采用欧五欧六标准的时候，它的以质量为基础的颗粒物排放限额只能满足通过时封闭式微粒过滤器。

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