Generated by Foxit PDF Creator Foxit Software http://www.foxitsoftware.com For evaluation only. N极 S极 两极 12槽 双层 单叠 绕组 换向器 电刷 RL 直流发电机N极 S极 v - E + RL IL 两极 12槽 双层 单叠 绕组 换向器 电刷 直流发电机 Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only