fuel mixture ratio

例句：

1. 1.The car's engine needs to be tuned for optimal performance.
   这辆车的引擎需要调校以获得最佳性能。
2. 2.The engineer used the fuel mix ratio to optimize the engine's efficiency.
   工程师使用燃料混合比例来优化发动机的效率。
3. 3. The pilot adjusted the fuel mix ratio to maintain stability during takeoff.
   飞行员调整了燃料混合比例，以在起飞时保持稳定。