DB2 row compression features can decrease disk storage requirements while at the same time improve sequential read access of large queries which perform full table scans.

DB 2行压缩功能可以减少磁盘存储需求，同时改进执行全表扫描的大量查询的顺序读取访问。

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During transmitting and storing information of digital image, in order to decrease the time of transmission and the space of storage, image compression procedure must to be done.

在图像的传输和存储过程中，为减少传输时间与存储空间，必须进行图像压缩。

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A novel fast algorithm for real time SAR imaging is presented to decrease the volume of compression computation.

提出了一种新的实时合成孔径雷达成像快速算法，减少了合成孔径雷达成像中压缩处理的运算量。

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