The second physical region, the central plateau, lies further inland.

第二个地理区域中部的平原延伸到内陆。

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The third physical region, called the Ardennes, is more rugged than the other two regions.

第三种地理区域叫作 阿尔丁区域。与前面两个地势相比，更加恶略。

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The tree network topology is ideal when the workstation are located in groups, with each group occupying a relatively small physical region.

树网络拓扑时理想工作站位于组，每组占据一个相对较小的物理区域。

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Security expert John Pike, director of GlobalSecurity.org, thinks power in the Arctic may lie with whoever has the best physical access to this forbidding region.

CNN: Countries in tug-of-war over Arctic resources

We've already seen 220 miles worth of levees and flood walls repaired, and we are working to strengthen the wetlands and barrier islands that are the first line of defense for the Gulf Coast. (Applause.) This isn't just critical to this region's physical protection, it's critical to our environment, it's critical to our economy.

WHITEHOUSE: President Obama Holds Town Hall in New Orleans

Our data consistently shows Web site response times vary from region to region based on the physical location of a cloud server machine.

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