Usually media failure is caused by either the complete loss of a data file or a system change number (SCN) time stamp being out of sync with the rest of the database.

通常媒体故障是由于数据文件完全丢失或系统更改编号（System Change Number，SCN）时间戳与数据库的其余部分不同步造成的。

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Each entry in the set designates a toll transaction between a vehicle and the toll system and includes a transaction descriptor and a transaction time stamp.

集合中的每一条目指定车辆和所述通行费系统之间的通行费交易并包括交易描述符和交易时间戳。

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So using increased time stamp technology can solve some security problems about mobile agent system better.

因此，利用互质增量时间戳技术就可以较好地解决了移动代理系统中的一些安全问题。

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So using increased time stamp technology can solve some security problems about mobile agent system better.

因此，利用互质增量时间戳技术就可以较好地解决了移动代理系统中的一些安全问题。

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