engine speed control switch
automatic engine speed control
automatic engine speed control group
automatic control switch
control of engine speed
automatic engine speed control linkage
engine speed
发动机转速
引擎转速
柴油机转速
引擎转速控制杆
发动机速度
发动机转速度
轉速
机速
转速
engine speed control valve
engine speed control circuit
automatic intermediate engine speed
engine speed control cylinder
automatic gain control switch
engine speed control lever
engine speed information