Each unique mount instance of a file system object is represented by a virtual file system structure.

文件系统对象的每个唯一的装入实例通过一个虚拟文件系统结构进行表示。

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A mount object cloned from a slave mount is also a slave mount and is the slave of the same master as that of the original slave mount.

从从属挂载克隆的挂载对象也是从属的挂载，它也从属于原来的从属挂载的主挂载对象。

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One other specialized mount object is called an unbindable mount, which is like a private mount but also disallows bind mounting itself.

另一种特殊的挂载对象称为不可绑定的挂载(unbindable mount)，它们与私有挂载相似，但是不允许执行绑定挂载。

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