例如，有些驱动程序使用内存句柄做标识以便能快速访问到包含有给定驱动实例的内存信息。

For example, some drivers use a memory handle for the identifier to gain quick access to memory containing information about the given instance.

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这些设施包括打开文件句柄(文件描述符)、共享内存、进程同步原语和当前目录。

Facilities include open file handles (file descriptors), Shared memory, process synchronization primitives, and current directory.

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dlclose关闭到lowercase . so的句柄，并且从内存中取消dll映射。

The handle to lowercase.so is closed by dlclose and the DLL is unmapped from memory.

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