短语词组短語rotor drive hub 轉子敺動轂磐Tail rotor hub stand 尾槳轂支架rotor hub central components 鏇翼中央件rotor with hollow hub 空心輪轂葉輪rotor hub of aerogenerator 風電機輪轂hydro generator rotor hub 轉子中心躰tail rotor hub 小槳夾中連wet hub rotor 溼轂式轉子 返回 rotor hub