In fact, these data categories are the real thing, and the hierarchy inside each profile is a virtual copy of the same structure.

实际上，这些数据类别是真实的，而配置文件中的结构则是这个结构的虚拟副本。

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Agarwal's solution, developed with two UCSD professors, Stefan Savage and Rajesh Gupta, is to create a stripped down, virtual copy of a machine.

阿加沃的解决方案，由他跟加利福尼亚大学的另外两名教授史蒂芬和拉杰史一起开发，是创造出一个隔离的、虚拟的机器备份。

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It just seems my virtual copy doesn't play as well as the Henry character - although in real life, especially this season, I'm better than him.

但看起来我的虚拟角色完全不如亨利，尽管在现实生活中，特别是这个赛季，我比他强的多。

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Paid services offer more extensive remote access, including the ability to turn on a phone, operate its camera, pull up a virtual copy of its home screen and monitor activity on the device.

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There's also a QR code plus its corresponding label ID printed below the foil, and scanning the former or entering the latter on qr-sennheiser.com returns a virtual copy of the foil label plus a visual description.

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As more of our daily lives move to the virtual, and for photographers hard copy prints or transparencies become a rarity, it is a treat to find a project that focuses on the world of analogue photography.

BBC: Uncovering the past