ZHAO Yong,CHE Jian-guo,YANG Jian-guo.Research of multistage fine-driven method of stepmotor [ J ].Jiangsu Electrical Engineering, 2003,22 ( 1 ): 23 - 24.是什么意思_ZHAO Yong,CHE Jian-guo,YANG Jian-guo.Research of multistage fine-driven method of stepmotor [ J ].Jiangsu Electrical Engineering, 2003,22 ( 1 ): 23