短语词组短语rotor r coil 转子线圈Rotor excitation coil 发电机转子绕组rotor coil connection 转子线圈连接rotor coil wire 转子线圈导线rotor half -coil 转子半线圈supercooled rotor coil 超冷转子线圈Aropac rotor coil 空冷转子线圈rotor coil short circuit 转子匝间短路 返回 rotor coil