Virtual networks make use of virtual switches.

虚拟网络使用虚拟交换机。

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With a "multiverse" of virtual networks available for experiment, it should at last be possible to kick-start the evolution of the Internet.

这样的一个可以用作实验的“多元的”虚拟网络的出现，终于可以使的启动互联网的进化变得可能。

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The authors propose a kind of CD ROM database information services based on virtual networks and shared by telephone, fax and the Internet.

它可使光盘数据库充分发挥效能，使信息服务机构获取最大收益，还可避开基于广域网的光盘数据库信息服务中引起的版权之争。

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Apparently in our online world of virtual networks, the last thing we want is to be pestered by brands and companies.

FORBES: Don't Infringe On My Social Space Friend

Put simply, virtual networks and communities around the world have democratized the ability for anyone to rise to power and influence the masses.

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Jean-Baptiste Meyer, of the French Institute of Research for Development, has traced a growing number of virtual networks that link together a country's expatriate researchers, scientists, students or business folk.

ECONOMIST: Emigration