Methods One centralized residence area, a town with convenient transportation and its population around 170000, was chosen for the study.

方法选择居住较为集中、交通略便利，人口约1.7万人的乡镇作为线索调查点。

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There is difference between centralized database and distributed database, which distributed database needs data transportation.

由于集中式数据库和分布式数据库的区别在于，分布式数据库需要站点间的数据传输。

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To cultivate and standardize railway transportation market, conduct centralized dispatching control of national railways;

培育和规范铁路运输市场，统一管理全国铁路调度指挥工作；

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The new terminal will create a centralized transit hub to link currently disconnected transportation networks in downtown Atlanta, including high-speed rail, commuter rail, streetcar, Greyhound, MARTA, pedestrians, cyclists and more.

WHITEHOUSE: The White House