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 |
|
Spatial and temporal evolutionary patterns and influencing factors of patent agency service networks in China |
| WANG Junsong, LIU Zhiqing |
| 图5 2001—2018中国专利代理服务网络的等级层次图 |
| Fig. 5 Hierarchical structure of Chinese patent agency network in 2001-2018 |
|
|