rid惟一地标识了表中的一行。
密钥——唯一地标识事件。
时区标识符是唯一地标识时区的键字段。
The time zone identifier is a key field that uniquely identifies the time zone.
必须惟一地标识每个操作消息并进行数字签名。
Every operation message must be uniquely identified and digitally signed.
可以定义任何值，但是要确保它惟一地标识了这个表。
You can define any value but make sure it uniquely identifies the particular table.
所有的备用零件要用备用零件标识号码清楚地标识出来。
All spare parts have to be clearly marked with spare part item number.
因此，一台计算机的唯一地标识功能可以方便地转移到另一个。
Therefore, the uniquely identifying feature of one computer can easily be transferred to another.
因此，一台计算机的唯一地标识功能可以方便地转移到另一个。
Therefore, the uniquely identifying feature of one computer can easily be transferred to another.
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