fuel conversion efficiency

例句：

1. 1.The car's fuel conversion efficiency is one of the key factors in its performance.
   汽车的燃料转换效率是其性能的关键因素之一。
2. 2.The new engine design has significantly improved the vehicle's fuel conversion efficiency.
   新型发动机设计显著提高了车辆的燃料转换效率。
3. 3.The research aims to enhance the fuel conversion efficiency of renewable energy sources.
   该研究旨在提高可再生能源的燃料转换效率。