对于受内部限制，不能通过HTTP代理连接到外部世界和公共网络上的设备的计算机，可以使用这种技术来在那些计算机之间构建一个虚拟网络。
You can use this to build a virtual network between computers that are limited internally to connect to the outside world through an HTTP proxy, through to devices outside the public network.
它们是在虚拟世界技术之上构建的，与企业后端系统和2dWeb集成，最终连接物理世界。
Are built on virtual worlds technologies, and are integrated with enterprise back-end systems, 2d Web and, eventually, physical world.
技术上说，VPN是指将物理上分布在不同地点的网络，通过公用骨干网连接而形成的逻辑上的虚拟子网。
In technology, VPN means the networks locating in the different places are connected by main public networks, which shape the logic networks.
技术上说，VPN是指将物理上分布在不同地点的网络，通过公用骨干网连接而形成的逻辑上的虚拟子网。
In technology, VPN means the networks locating in the different places are connected by main public networks, which shape the logic networks.
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