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本文指出采用新的概念设计，可使汽油机排放量降低到美国排放标准。新概念设计的重点是对发动机控制系统和发动机自身改善排放提出了特殊要求。
This paper points out that the new concept design can reduce the emission of gasoline engine to the US emission standard. The new concept design focuses on specific requirements for improving engine control systems and engine emissions.