The storage methods of global directories and Pointers reduce the data redundancy and improve the data integrity.

采用全局目录和指针存储方式，减少了数据冗余，有利于数据的一致性。

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The index correlation between the parameters of the focal mechanism and the basic ones of earthquakes can effectively reduce the data redundancy and build up foundation of data processing efficiently.

震源机制解参数与地震基本参数之间的索引联接有效地减少了数据冗余，同时也为高效的数据处理打下良好的基础。

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After image was decomposed, the corresponding data were compressed and coded. It could reduce the time and space redundancy.

图像分形后，对相邻帧间对应的数据求差并进行压缩编码，减少时间与空间冗余度。

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The essential strategy to mitigate risks of data loss and downtime is to add redundancy and reduce dependencies wherever possible.

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