中国城市群技术知识多中心性演化特征及创新效应

马海涛, 徐楦钫, 江凯乐

The evolutionary characteristics and innovation effects of technological knowledge polycentricity in Chinese urban agglomerations

MA Haitao, XU Xuanfang, JIANG Kaile

图8 形态多中心性与专利申请量二次函数拟合图

Fig. 8 Quadratic function fitting diagram of morphological polycentricity and the number of patent applications