DB2有一个非常高效的备份实用程序，它可以将从数据库读出的数据页分成多个部分，并以随机的顺序将它们写到目标设备。
DB2 has a very efficient and optimized backup utility that multiplexes the data pages it reads from the database and writes them to the target device in a randomized order.
在数据被存储之前压缩数据，以及在从外部存储设备读出数据时将数据解压，这都需要使用一定的CPU资源。
A certain amount of CPU resource is used to compress the data before it is stored, and then to decompress the data when it is read from the external storage device.
使用它的患者首先在意念中慢慢的将单词读出来；然后由一个定位在项链上的四分之一缩尺大小的设备将数据无线传输到电脑或者电话中，由其中的软件发声。
Patients imagine slowly sounding out words; then the quarter-size device (located in a neck brace) wirelessly transmits those impulses to a computer or cellphone, which produces speech.
使用它的患者首先在意念中慢慢的将单词读出来；然后由一个定位在项链上的四分之一缩尺大小的设备将数据无线传输到电脑或者电话中，由其中的软件发声。
Patients imagine slowly sounding out words; then the quarter-size device (located in a neck brace) wirelessly transmits those impulses to a computer or cellphone, which produces speech.
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