当跟随文件模式位的字符是空格时，就表示没有替换访问方法。

When the character following the file mode bits is a space, there is no alternate access method.

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为帮助开发人员管理多个内核扩展，AIX操作系统提供了双模式存档方法，该存档方法在同一存档文件中同时允许32位和64位内核扩展。

To help developers manage multiple kernel extensions, the AIX operating system provides the dual-mode archive method, which permits both 32-bit and 64-bit kernel extensions in the same archive file.

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第一层防御是在数据库的查询中总是包含文件类型和来自磁盘上实际文件的模式位 (mode bits)，而不只包含文件的设备和 inode 号。

The first layer of defense is that queries to the database always include the file type and mode bits from the real file on disk, not just the device and inode.

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