The file server process sends the file to the client cache with a callback attached to it so that the system can deal with any changes happening somewhere else.

文件服务器进程把文件发送到客户机缓存内并随其附带一个回调，以便系统可以处理发生在其他地方的任何更改。

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With the portlet window id, the portlet now has the means to cache such data in cache systems provided by the application server, or by another caching system.

使用Portlet窗口ID, Portlet现在可以在缓存系统中缓存由应用程序服务器或其他缓存系统提供的此类数据。

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They only talk to the Web cache server which runs a specialized operating system that has fewer potential entrances for hackers than a more general-purpose operating system.

他们只能与网站缓存服务器交谈，这种服务器运行专用的操作系统，它比起通用的操作系统，拥有黑客的潜在入口更少。

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