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Sigma KEE - UniformResourceName
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统一资源名称
The term UniformResourceName (URN) refers to the subset of URI that are required to remain globally unique and persistent even when the resource ceases to exist or becomes unavailable (source: http://www.ietf.org/rfc/rfc2396.txt).
Relationships      
Parents 统一资源标识符 A UniformResourceIdentifier (URI) is a compact string of characters for identifying an abstract or physical resource. A URI can be further classified as a locator, a name, or both (source: http://www.ietf.org/rfc/rfc2396.txt).


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