Earlier engine control systems mainly based on mass air flow, fuel quality and Spark Timing.

早期的控制系统主要是以气缸充气量、燃油质量和点火正时为控制参数。

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Earlier engine control systems mainly based on mass air flow, fuel quality and Spark Timing.

早期的控制系统主要是以气缸充气量、燃油质量和点火正时为控制参数。

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