Attacks on Internet sites and infrastructure, and the compromise of secure information, pose a particularly tricky problem because it is usually impossible to trace an attack back to its instigator.
因为通常不可能追踪到攻击者，对互联网站和网络基础结构的攻击，及其对安全信息的危害，是一个异常棘手的问题。
Each user, on approximately equal footing, is only one step removed from the Internet, ICT infrastructure, and OER tools for collaboration at the centre of the hub.
各个用户的立足点大约相等，距互联网、ICT基础设施和OER协作工具的中心枢纽只有一步之遥。
Well, just ask Estonia, one of the most internet-dependent countries on the planet, which in 2007 was more or less shut down for two weeks by a sustained attack on its network infrastructure.
嗯，你问一下爱沙尼亚，这个星球上最依赖互联网的国家之一，2007年其网络基础设施受到持续袭击而关闭了多多少少也有两个星期。
Think of the internet as the tracks and signalling, the infrastructure on which everything runs.
把互联网当作所有东西都在它上面运行的铁路轨道和信号系统。
That mission could be the “21st century infrastructure, ” that Mr. Obama mentioned on a multi-city trip this month, “not just roads and bridges, but faster Internet access and high-speed rail.”
这个大使命可以是本月奥巴马在做多个城市访问时所提到的“21世纪构架”，“不单单局限于公路和桥梁，还包括快速网络接入和高速铁路”。
Distribute GIS will become an infrastructure, on which human depends in Internet times.
分布式GIS将成为互联网时代人类生存所依赖的一种基础设施。
Twenty-first century businesses need 21st century infrastructure -- modern ports, and stronger bridges, faster trains and the fastest Internet. Democrats and Republicans used to agree on this.
21世纪的商业需要21世纪的基础设施，现代港口、更坚固的桥梁、更快的火车和最快的互联网。
The year 2015 will have an extra second — which could wreak havoc on the infrastructure powering the internet.
2015年将会多一秒钟——这会对网络基础设施造成严重破坏。
Grid is the new generation of infrastructure established on the Internet, in the grid computing the majority of tasks are the collaborative tasks composed by some sub-tasks with complex relations.
网格是建立在互联网上的新一代基础设施，网格计算中大部分任务为子任务之间具有复杂关系的协作型任务。
Each node runs both the unicast routing protocol and the multicast routing protocols on a dynamic on demand basis, and interfaces seamlessly with the existing Internet infrastructure.
实验床中的各移动节点都运行按需单播路由协议与多播路由协议，并可通过基站系统与有线骨干网连接。
Each node runs both the unicast routing protocol and the multicast routing protocols on a dynamic on demand basis, and interfaces seamlessly with the existing Internet infrastructure.
实验床中的各移动节点都运行按需单播路由协议与多播路由协议，并可通过基站系统与有线骨干网连接。
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