traditionally, "gateway" is a term that describes a physical device that connects two incompatible networks.

defining a logical backup device involves assigning a logical name to a physical device.

定义逻辑备份设备涉及为物理设备分配逻辑名称。

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and that's really important, because there's no reason in this day and age that we should be conforming to a physical device.

这很重要，因为在当今这个时代没有理由我们应当屈就一个设备。

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device dynamic exchange module allowed virtual machine to re- orientation to the physical device dynamically.

设备动态交换模块允许虚拟机重新动态地定向到物理设备。

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the never-changing mac provides a specific, reliable address for a physical device.

而永不变化的MAC地址给物理设备提供了一个独特可靠的地址。

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if the physical device exists and the init option is not specified in the backup statement, the backup is appended to the device.

如果存在物理设备且BACKUP语句中未指定INIT选项，则备份将追加到该设备。

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an access to a raw device avoids the cache, resulting in direct read and write operations on the physical device.

而对原始设备的访问则没有缓存，导致物理设备上的直接读写操作。

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if you have a supported physical device already in partnership with your development computer, you could also choose the physical device.

如果开发计算机中已经有一个受支持的物理设备，也可以选择该物理设备。

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the containers used in dms must be a pre-allocated file or physical device, such as a hard disk drive.

DMS中所使用的容器则必须是预分配的文件或物理设备，如硬盘驱动器。

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block size of the physical device containing the file in bytes (not the backup device).

包含文件的物理设备（并非备份设备）的块大小（以字节为单位）。

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the initialization of the physical device occurs later, when a backup is written to the backups device.

将备份写入备份设备后，便会初始化物理设备。

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then, at least one logical interface will be linked to this physical device, such as en0 or et0, on which the ip address will be configured.

至少有一个逻辑接口与这个物理设备链接，比如en0或et0，在逻辑接口上配置IP地址。

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for example, depending on the system, this class might be able to access a physical device.

例如，根据具体的系统，此类可能能够访问物理设备。

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below the buffer cache are the device drivers, which implement the interface for the particular physical device.

缓冲区缓存之下是设备驱动程序，它实现了特定物理设备的接口。

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describes opening the device emulator as a substitute for a physical device.

介绍如何使用设备仿真程序来替代物理设备。

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an inverted pendulum is a physical device consisting in a cylindrical bar (usually of aluminium) free to oscillate around a fixed pivot.

一个倒立摆是个物理设备它包括一个圆柱体的棒子（通常是铝的）可以在一个支点周围振荡。

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this file can be on a different disk drive than the main file, which means that the database can be larger than one physical device.

该文件可以位于和主文件不同的磁盘驱动器上，这意味着数据库的大小可以超过一个物理设备。

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a backup device is a logical device that corresponds to a resource provided by the operating system (the specified physical device).

备份设备是指对应于操作系统提供的资源（指定的物理设备）的逻辑设备。

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the access to a specific device is handled by traditional physical device driver associated with it.

对特定设备的访问由与它相关联的传统物理设备驱动程序处理。

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at the bottom line we see an additional 11% pages had to be read from the physical device.

在基线上，我们看到必须从物理设备多读11%的页。

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the device emulator can serve as a substitute for a physical device during much of the development cycle of a smart device project.

在智能设备项目开发周期的大部分阶段，设备仿真程序都可以充当物理设备的替代品。

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