单叶旋翼的英文

• single-bladed rotor

• 旋:    whirl
• 翼:    the wing of a bird
• 宽叶旋翼:    broad-bladed rotor; large-chord rotor
• 双叶旋翼:    twin-bladed rotor; two-bladed rotor
• 四叶旋翼:    four-blade rotor