throttling expansion

例句：

1. 1. The engine's throttle is set to its maximum speed for optimal performance.
   发动机的节气门被设置到最大速度以获得最佳性能。
2. 2.During throttle expansion, the gas expands rapidly and generates a lot of heat.
   在节流膨胀过程中，气体迅速扩张并产生大量热量。
3. 3. The throttle expansion is crucial for maintaining stable fuel delivery during acceleration.
   节流膨胀对于保持加速过程中稳定的燃料输送至关重要。