The fourth part is empirical analysis on electronic and telecommunication's equipment industrial clusters competitiveness. 第四部分是电子及痛心设备产业集群竞争力的实证分析。
The functions of the industry clusters in thedevelopment of city groups include the drive mecha-nism and restriction mechanism. 产业集群在城市群发展中的作用机制有驱动机制和约束机制。
