中文摘要：

知识溢出是产业集聚的重要力量。知识的创新、扩散与积累都是在集聚体内进行的，集聚的存在也为知识溢出关联提供了产业网络基础，两者存在相互促进的关系。然而，知识溢出效应的产生不仅仅需要企业地理位置上的邻近，更重要的是企业之间密切的互动联系。对两者关系的探讨对我国工业园区建设以及老工业基地的振兴具有重要的启示意义。

英文摘要：

Knowledge spillover is an important centripetal force. Knowledge creation, diffusion and accumulation are all closely correlated with agglomeration, and vice versa agglomeration also provides a network for knowledge linkage. However, yielding knowledge spillove effect involves not only simple geographical proximity with each other but also a close reciprocal relation among agents. It shows that the relationship between knowledge spillover linkage and agglomeration has policy meanings on industrial parks building and old industrial bases restructuring.