Background: Deep in the bowels of Cheyenne Mountain is a city-like military complex that once served as North American Aerospace Defense Command (NORAD) 's center.

背景材料：在夏延山的深处像一座城市一样的军事综合隧道，一度作为北美防空司令部(NORAD)的中心。

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Among them are the Aero Glass interface, DVD playback, Windows Media Center, Remote Media Streaming, XP Mode, and even the ability to change your desktop background image or window colors.

其中包括Aero glass界面，DVD回放，Windows Media Center，远程媒体流，XP模式，甚至是更换桌面背景图片或窗口颜色的能力。

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The disastrous scene in Nihombashi-ku, the center of the Imperial Capital. Men stand among debris and bodies, building frames in background. (Brown University Library/William Dana Reynolds)

在京城中心日本桥区的惨状。站在废墟和尸体间的男人们。背景是楼房残迹。（布朗大学图书馆/威廉·达纳·雷诺兹）

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There is also a scene of a banner with an American flag in the background and the New York City skyline with the destroyed World Trade Center twin towers.

VOA: standard.2009.09.14

VMware focuses on the virtualization they know from their data center background with a vision to bring cloud, virtual desktop and application delivery together under one product.

FORBES: Why You Cannot Rely on Vendors for Your IT Strategy

By including the FAST AF system, which is the crystallization of years of Olympus AF technology, and the easy controls of the touch screen, subjects throughout the screen can easily be focused on, whether in the center, background, or edges, allowing users to snap the shutter at just the right moment.

ENGADGET: Olympus unveils Stylus XZ-10 with f/1.8-2.7 zoom, smartphone sharing app

Such an inherently centrifugal society, he says, requires the kind of strong center that someone from a military background can develop.

CNN: The Unlikely 'Military Man'