它利用传输控制协议确保在传输过程中无数据丢失和被复制。

It USES Transmission Control Protocol to assure that no data are lost or duplicated.

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研究结果表明，利用事务日志可以实现无数据丢失的完全恢复。

The result shows that the complete recovery can be implemented by transaction log.

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举例来说，亚马逊关系数据库服务amazon Relational Database Service (RDS)提供了无数据丢失的自动备份和还原服务。

For example, the Amazon Relational Database Service (RDS) provides automatic backup and recovery with virtually no data loss.

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