propeller-blade area

例句：

1. 1. Theaircraft's propeller blades are designed to reduce noise and improve efficiency.
   飞机的螺旋桨叶片设计旨在降低噪音并提高效率。
2. 2. The propeller blades on the ship's engine were damaged during a storm.
   船只引擎上的螺旋桨叶片在暴风雨中受损了。
3. 3. The propeller blades are responsible for generating thrust and propelling the aircraft forward.
   螺旋桨叶片负责产生推力，推动飞机向前飞行。