Fractal theory is the most active branch of the non-linear science, what it concerns is non-smooth and non-differential geometry produced by complex systems.

分形理论是非线性系统理论中最为活跃的分支之一，研究的是复杂系统产生的不光滑、不可微分的复杂几何体。

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Routing technology is one of the key technologies in the study of the wireless sensor networks, and the cluster-based routing protocols have become an active branch of routing technology now.

路由技术是无线传感器网络研究的关键技术之一，分簇路由协议成为目前重点研究的路由技术。

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Routing technology is one of the key technologies in the study of the wireless sensor networks, and the cluster-based routing protocols have become an active branch of routing technology now.

路由技术是无线传感器网络研究的关键技术之一，分簇路由协议成为目前重点研究的路由技术。

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