thermal efficiency

Modern F1 engines break fifty percent thermal efficiency, unheard of in road cars.现代F1引擎的热效率突破了百分之五十，这在公路车上是闻所未闻的。

Every point of thermal efficiency means less fuel carried and a lighter car.热效率每提高一个百分点，意味着携带的燃油更少，赛车也更轻。