propeller efficiency

例句：

1. 1. The design of the propeller is crucial for the efficiency of the aircraft's propulsion system.
   推进器的设计与飞机推进系统的高效性息息相关。
2. 2.The efficiency of the propeller is directly related to the fuel consumption of the aircraft.
   推进器的工作效率直接影响到飞机的燃油消耗。
3. 3.The efficiency of a propeller is measured by its ability to convert mechanical energy into kinetic energy.
   推进器的工作效率是通过其将机械能转化为动能的能力来衡量的。