In rare cases additional air jets near the exit have been tried . 少数情况下,在出口附近曾经试用过空气引射。
This additional fuel matches the additional air flow through so that the proper air-fuel ratio is maintained . 增多的燃油与增多的空气流混合,因而保持了合适的空-燃比。
New carburetors manufactured for cars with these systems are specially calibrated to compensate for the additional air . 带有这些系统的汽车用新型化油器,都经过专门校准,以抵偿这种额外的空气。