fuel economy

• 节约燃料,耗热率

fuel economy的用法和样例：

例句

1. This method has the advantage of saving fuel.
   这种方法有节约燃料的优点。
2. There is no incentive for people to save fuel.
   没有使人们节约燃料的鼓励办法。
3. Raw or liquid fuel doesn't ignite, so excessive hydrocarbons can be emitted out the tailpipe.
   并保持理想的燃烧效率。