r4r:RRPolicy: Any mechanism designed for relating to RRObject for reusing purposes is defined as a Reusing Related Policy (RRPolicy). RRPolicy is free to be extended for more issues such as security and trust for its subclasses concepts.
r4r:RRPolicy: 任何機制用來描述再次使用的狀態定義為 RRPolicy(再次使用相關機制)。RRPolicy 可擴充相關機制如安全性與信任機制等議題。
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