Next is the block device drivers layer, which contains the various block drivers for underlying devices.

接下来是块设备驱动器层，它包括针对底层设备的各种块驱动器。

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The UIP application Block allows you to abstract the presentation layer code of your application into a separate layer.

UIP Application Block允许你抽象应用程序中表现层的代码到另外一个层。

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The Linux block layer component of this is called a discard request, which results from a higher-level file system file deletion.

Linux的这个块层组件称为丢弃请求，它来自于更高级别的文件系统的文件删除。

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The launcher shoots the bottles at a velocity of 984 feet per second, fast enough to smash a double-layer breeze-block wall and allow assault troops to enter a building, according to the manufacturer, BCB International.

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