special tuning

例句：

1. 1. The car's engine needs a special tuning to improve performance.
   这辆车的引擎需要特别的调校来提高性能。
2. 2. The engineer made special tunings for the new model.
   工程师为新款模型做了特别的调校。
3. 3.The pilot tuned the plane to its best performance before takeoff.
   飞行员在起飞前对飞机进行了最佳性能调校。