n.推进者；推动器，螺旋桨；叶（涡）轮；压缩器

原形：impeller复数：impellers

The impeller rotates within the pump housing, creating suction to draw in fluid.
转子在泵壳内旋转，产生吸力以吸入流体。
The damaged impeller reduced the efficiency of the water pump significantly.
损坏的叶轮显著降低了水泵的效率。
The engineer carefully balanced the impeller to ensure smooth operation of the centrifugal pump.
工程师仔细平衡了叶轮，以确保离心泵平稳运行。
The impeller's blades are designed to accelerate the flow of fluid through the pump.
叶轮的叶片设计用于加速流体通过泵的速度。
Regular maintenance includes inspecting the impeller for signs of wear and tear.
定期维护包括检查叶轮是否有磨损迹象。
The high-speed rotation of the impeller creates a pressure differential, forcing the liquid outwards.
叶轮的高速旋转产生压差，迫使液体向外流动。
The impeller was replaced due to excessive vibration during operation.
由于运行时振动过大，叶轮被更换了。
In a turbocharger, the impeller compresses the incoming air, increasing engine performance.
在涡轮增压器中，叶轮压缩进入的空气，提高发动机性能。
The design of the impeller affects the pump's head and flow rate capabilities.
叶轮的设计影响泵的扬程和流量能力。
The impeller's material must be corrosion-resistant to handle acidic fluids.
叶轮的材料必须耐腐蚀，以便处理酸性流体。