air fuel ratio短语¹⁴⁴⁹⁷²⁺² 基本例句 空气燃料比 For air/span> fuel/span> ratio signal of a gasoline engine, there exist transmission delay, which affects the control accuracy of air/span> fuel/span> ratio using directive air fuel ratio sensor signals. 车用汽油机空燃比存在传输延迟，直接用于反馈控制影响空燃比的控制精度。 dictall