Now, the ACL is defined to give the root user read, write, and execute permissions, but not the deletion (that is, the "d") permission bit.
现在，ACL 已定义成赋予根用户读、写和执行权限，但没有删除权限位（即 “d”）。
Nearly every modern OS makes use of a bit-masking permission-based model that deals with the control of resources by principals, based on principals and groups.
几乎每个现代操作系统都使用基于位屏蔽权限的模型，该模型基于主体和组按主体处理资源控制。
This is far from being a full solution, as it is a bit experimental and relies on less-than-desirable permission settings, but you can see that such a task is possible.
当然，这远非一个完整的解决方案，因为它是试验性的并且依赖于不甚理想的权限设置，但是您可以看出这类任务是可能的。
While this makes some economic sense for a device that plays high-definition movies, it can be a bit frustrating to need special permission to view your X desktop.
虽然这种做法是为了保护高清晰电影，但是查看x桌面也需要特殊许可还是有点讨厌。
While this makes some economic sense for a device that plays high-definition movies, it can be a bit frustrating to need special permission to view your X desktop.
虽然这种做法是为了保护高清晰电影，但是查看x桌面也需要特殊许可还是有点讨厌。
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