除了其他一些特性之外，Pacifica还为在特殊指令执行时保存的客户操作系统维护了一个控制块。

Among other things, Pacifica maintains a control block for guest operating systems that are saved on execution of special instructions.

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如图1所示，一个Web站点常常会被分成几个互相连接的块，比如保存客户有用数据的数据库以及站点的配置信息。

As Figure 1 shows, a Web site is often broken up into several interconnecting pieces, such as a database holding your customer's valuable data and your site's configuration information.

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用continuation进行调用使您获得一个代码块和指派给变量的continuation(或已保存的调用堆栈，其中有实例变量)。

Call with continuation gives you a code block, and the continuation (or a saved call stack, with instance variables), which you assign to a variable.

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