中国专利代理服务网络的时空演化格局及影响因素
Spatial and temporal evolutionary patterns and influencing factors of patent agency service networks in China
中国专利代理服务网络的时空演化格局及影响因素 |
| 王俊松, 刘芷晴 |
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Spatial and temporal evolutionary patterns and influencing factors of patent agency service networks in China |
| WANG Junsong, LIU Zhiqing |
| 图6 2001—2018年高层级服务城市的服务半径与专利代理服务量散点图 |
| Fig. 6 Scatter plot of service radius and service number of high-level service cities, 2001-2018 |
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