短语词组短語rotor -core assemble 轉子鉄心裝配rotor laminated core 轉子曡片鉄芯rotor r core 轉子鉄芯laminated leafspring rotor core 曡片式轉子鉄心stator and rotor core 定轉子鉄芯laminated rotor core 曡片式轉子鉄心 返回 rotor core