短语词组短语winding g overhang support 绕组端部支撑winding g overhang 绕组端部winding overhang support 绕组端部支撑field winding overhang 励磁线圈端部rotor winding overhang 转子线圈端部tapered -overhang winding 锥端绕组 返回 winding overhang