Each element is assigned a unique identifying number of numbers.

分配给每个元素一个独有的编号，用来区别于其它的元素。

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Employee Number Identifies the person's unique company identity number Often systems need this ID for uniquely identifying employees at a company.

Employee Number 标识个人的公司身份号 系统通常需要该 ID 来唯一地识别公司的员工。

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Each node is assigned a unique identifying serial number.

每个节点都指定了一个惟一的标识序列号。

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Each watch will have a unique identifying number, and the transmissions to each watch will be encrypted to protect the user's privacy.

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