中国城市物流创新的空间网络特征及驱动机制

孙春晓, 裴小忠, 刘程军, 卜庆军

Spatial network characteristics and driving mechanism of urban logistics innovation in China

SUN Chunxiao, PEI Xiaozhong, LIU Chengjun, BU Qingjun

图1 2003—2018年各年度专利转移数据统计

Fig. 1 Statistics of patent transfer data in each year from 2003 to 2018