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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It is impressive that only one Chinese bank can exceed that level so easily, within one year, without PR or active marketing in-branch.

FORBES: Gold Shorts Beware China's Million-Strong Gold Savers

And this year -- the first time in the history of the all-volunteer force -- the Navy and every component of every branch of the military, active, Guard and Reserve, met or exceeded their recruiting and retention goals.

WHITEHOUSE: President Obama Addresses Servicemen and Women in Jacksonville, FL | The White House