技术上讲，超文本链接可以是任何“统一资源标识符”（URI），不过现在大多数人只知道一种特定的 URI，那就是“统一资源定位符”（URL）。
Technically, a hypertext link can be any "uniform resource identifier" (URI), and today most people only see a particular kind of URI called a "Uniform Resource Locator" (URL).
在全球定位系统领域，俄罗斯完全有理由宣称其拥有技术上的优势。
In the field of global positioning systems, fully justified Russia has declared its technical advantages.
目前，无线传感器网络仍然存在一些技术上的难点，节点定位技术与很多实际应用有着密切的联系，因而受到关注。
At present, there are many technical difficulties in the research of Wireless Sensor Network, the node localization, which associates closely with many practical application, obtains more attention.
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