它把数据分散在几个物理服务器上，但是用户作为一个与UNIX相似的文件系统资源操作它。
It spreads data over several physical servers, but the user treats the amalgam as one UNIX-like file system resource.
虚拟文件系统建立了不同的基础物理文件系统到逻辑文件系统之间的桥梁，为操作系统中的其他部分提供了一致的目录树层次结构。
The virtual file system bridges the underlying disparate physical file system to the logical file system, providing a consistent directory tree hierarchy to the rest of the operating system.
Web服务器的基本操作系统将在物理内存中缓存最近从磁盘读取的文件。
A web server's underlying operating system will cache files that were recently read from disk in physical memory.
如果选择多个文件，一个新的物理文件在一个操作连接建立时创建。
If the latter option is selected, a new physical file is created when an operation connection is made.
在操作系统级，使用大容量磁盘阵列，通过磁盘映像技术使每一个数据库文件自动分布于每个物理磁盘。
In operating system class, array of disk of use high capacity, make through disk image technology each database file distributings automatically at every physics disk.
在概括性地介绍智能卡的物理结构之后，重点介绍了AT 89sc168芯片的使用，智能卡的文件数据结构和卡内操作系统结构。
After synoptically introduced the physical structure of Smart Card, the using of the chip AT89SC168 and structure on file and data of Smart Card is especially introduced.
一个流是一个由指针操作的文件或者是一个物理设备，而这个指针正是指向了这个流。
A stream is a file or a physical device (e. g. printer or monitor) which is manipulated with a pointer to the stream.
文件系统备份和恢复过程中，需根据当前备份资源树和历史备份资源树进行合并等操作，这种操作在物理上表现为对目录树和资源树的处理。
During backup and restore of file system, it needs to merge current backup resource tree and previous one, namely operations between catalog tree and resource tree.
文件系统备份和恢复过程中，需根据当前备份资源树和历史备份资源树进行合并等操作，这种操作在物理上表现为对目录树和资源树的处理。
During backup and restore of file system, it needs to merge current backup resource tree and previous one, namely operations between catalog tree and resource tree.
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