The mixture must be of varying degrees of richness to suit engine operating conditions. It must be rich (have a higher percentage of fuel) for starting, acceleration, and high-speed operation.
混合气的浓度比例可以改变,以适应发动机的运行状况。汽车在启动、加速和高速行驶时,需要含燃油浓度较高的混合气;
The mixture must be of varying degrees of richness to suit engine operating conditions. It must be rich (have a higher percentage of fuel) for starting, acceleration, and high-speed operation.
混合气的浓度比例可以改变,以适应发动机的运行状况。汽车在启动、加速和高速行驶时,需要含燃油浓度较高的混合气;
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