Cast Aluminium of Ceiling Fan Rotor
departure of rotor blade stagger
effect of rotor-blade modulation
effects of rotor-blade modulation
fibre-glass rotor blade
Forward-skewed Rotor Blade
high-low blades single rotor fan and compressor
last stage and penultimate stage rotor blade
low-pressure rotor blade
rotor blade
转子叶片
旋翼桨叶
动叶片
动叶
转子叶
转动叶片
导叶
转子刀片
桨叶
旋转叶片
旋翼