reduced steam

例句：

1. 1. The engine's efficiency has been greatly improved by reducing the amount of waste heat in the combustion chamber.
   通过减少燃烧室中的废热，发动机的效率已经大大提高。
2. 2. The reduction in carbon emissions is a major goal of the new energy policy.
   新的能源政策的主要目标是减少碳排放。
3. 3.The reduced steam was used to power the generator.
   减少的蒸汽被用来驱动发电机。