Besides, the key technologies such as data transport agent, dynamic data display and system security are also analyzed.

此外分析了数据传输代理、动态显示、系统安全等关键技术。

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It encodes the data in such a way that the mail transport agent is unlikely to modify the resulting octets.

这种对数据的编码方式使邮件传输代理不可能修改结果八位元。

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