由于该系统为每种物品提供一个身份标记，它可以被用来跟踪正版货或原版文件。

As the system provides each item with an identity, it can be used to track genuine goods and documents.

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认识，允许安全员标记可疑分子，然后系统在多个摄像机中跟踪他们。

Realise ", allows security officials to tag suspicious individuals and then have the system track them across multiple cameras."

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