In this case, data synchronization technology is necessary to keep the consistency of different data versions on the network.

在这种情况下，需要借助数据同步技术来保持网络上不同数据源的版本一致性。

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Secondly, applying the key technology of data real-time and synchronization in the differ-structure databases by taking ADO to deal with the database.

第二，完成了该系统中异构数据库间数据实时同步这个关键技术的设计与实现，同时在数据库的处理上采用了ADO技术来编程实现。

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This paper is focused on the new concept of cluster OFDM for high-speed data transmission in the Satellite-Earth communication, researches on the key technology of synchronization and cluster.

本文研究了星-地高速数据传输的新型群聚OFDM概念，研究新型系统中的同步、群聚关键技术。

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