efficiency of the pumping unit

例句：

1. 1. The new machine has greatly improved the efficiency of our factory.
   新机器大大提高了我们工厂的效率。
2. 2. The teacher's explanation was very clear and helped us understand the material more efficiently.
   老师的讲解非常清晰，让我们更有效地理解了材料。
3. 3.The team's collaboration increased the overall efficiency of their project.
   团队的协作提高了他们项目的整体效率。