This layer also handles the requests from the Presentation layer and interacts with the DAL to retrieve the data from the back end and request the DAL to perform data persistence.
这个层还处理来自表示层的请求，并与DAL交互以便从后端检索数据并请求DAL执行数据持久性。
When you open the Sign Up New User application, the Browser request Handler in the Presentation Layer handles the request from a Web interface.
当您打开SignUpNewUser应用程序时，表示层中的浏览器请求处理程序将处理来自web界面的请求。
The JSF specification contains a complete presentation of the request processing life cycle, which you'll probably find very useful when developing your own JSF-based applications.
JSF规范包括了对请求处理生命周期的完整描述，在开发自已的 JSF 应用程序时，您会发现该规范非常有用。
It accepts the request from the browser, requests the service from the business logic layer, generates the presentation, and responds to the browser.
它从浏览器接受请求，从业务逻辑层请求服务，生成表示并对浏览器做出响应。
The user clicks a report or analysis to view it, and the request goes through the gateway and the dispatcher to the presentation service.
用户单击一个报告或分析以查看它，请求经过Gateway和Dispatcher发往表示服务。
You can also request the participants to leave questions to the end of the presentation. However, it is important to let participants know that you are willing to answer any questions they may have.
与此同时，你也可以在演示结束的时候请观众提出问题，这样观众就会了解到你愿意回答他们的问题。
The Web browser client in Figure 1 ACTS as a GUI front end providing display functions using HTML generated by the browser Request Handler in the presentation layer.
图1中的Web浏览器客户端作为GUI的前端，使用表示层中的BrowserRequestHandler生成的HTML提供显示功能。
The Web browser client in Figure 1 ACTS as a GUI front end providing display functions using HTML generated by the browser Request Handler in the presentation layer.
图1中的Web浏览器客户端作为GUI的前端，使用表示层中的BrowserRequestHandler生成的HTML提供显示功能。
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