formatted file system meaning in English

格式文件系统

The kernel of the file system is composed of two parts : the virtual file system and the specialized format file systems
文件系统核实现分两个层次：虚拟文件系统和imfs 、 fat文件系统。
The virtual file system provides the unified api to users . the cefs has implemented two specialized format file systems - the imfs and the fat , which is under the level of the virtual file system
虚拟文件系统将对各种不同的文件系统的操作和管理纳入到一个统一的框架之中，即同一组系统调用，对各种不同的文件系统进行操作。