fuel modification

例句：

1. 1. The engine requiresfrequent fuel modifications to maintain optimal performance.
   发动机需要频繁的燃料调整以保持最佳性能。
2. 2.The engineer made a fuel modification to improvethe efficiency of the vehicle.
   工程师进行了燃料调整以提高车辆的效率。
3. 3. During the flight, thepilot made several fuel modifications to optimize fuelconsumption.
   飞行过程中，飞行员进行了几次燃料调整以优化燃油消耗。