短語詞組短語helicopter tail rotor [航]直陞機尾槳jet helicopter rotor [航]噴氣直陞機鏇翼helicopter rotor head 直陞機鏇翼槳轂helicopter rotor fuselage system 直陞積翼機身系統(tǒng)helicopter rotor airfoil 直陞機鏇翼槳葉helicopter rotor counterbalance component 直陞機鏇翼配重搆件helicopter rotor in hover 懸停鏇翼helicopter rotor noise 直陞機鏇翼噪聲helicopter rotor blade 直陞機鏇翼槳葉 返回 helicopter rotor