If you define a primary key for a table in your database, you can relate that table to other tables, thus reducing the need for redundant data.

如果为数据库中的某个表定义了主键，则可将该表与其他表相关，从而减少对冗余数据的需要。

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Data compression algorithm removes redundant data using the data correlation, and is dramatically significant for reducing energy consumption.

数据压缩算法利用数据间的相关性去除冗余数据，对降低网络通信能耗具有十分重要的意义。

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In surface reconstruction, due to high density of data obtained from laser scanner, these data still contain a great deal of redundant data after reducing noise error.

在曲面重构中，由于激光法测量的数据密度比较大，对噪声点处理后，数据中仍包含大量的冗余数据。

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