而Portlet将显示用于导航的链接，并使用引用来为用户检索任务相关的信息，并将结果返回给人工任务。
The portlet in turn displays the link for navigation, uses the reference to retrieve task-relevant information for the user, and returns the result to the human task.
调用的第二个php脚本，它返回用户看到的地图上所有邮政编码的相关信息。
The second PHP script called, which returns information about all zip codes inside of the map you would see.
用户发送给系统一条信息，系统就会返回用户与信息内容相关的链接。
Users send the system a question as a chat message, and the system replies with relevant links.
用户通过图形交互界面和系统进行交互，选择需要的结果，最后返回树形查询结果，并能看到相关的信息。
Users interacted with system through graphical user interface, selected the desired results, and finally returned query results in the form of tree, and related information could be seen.
通过搜索引擎能帮助用户获得所有与主题相关的页面，但返回的页面太多，而且有大量是重复和相似的，这样人们就不能快速获得自己真正所需要的信息。
But search engines have some serious defects. For example, so lots of pages returned by them are the same or similar. That is why people cannot get information rapidly and effectively.
信息检索是系统根据用户的请求从大量的文档中找到相关的信息，并将信息返回给用户的过程。
Information retrieval is a process in which what a user asks for are found from many texts and the results are returned to the user.
信息检索是系统根据用户的请求从大量的文档中找到相关的信息，并将信息返回给用户的过程。
Information retrieval is a process in which what a user asks for are found from many texts and the results are returned to the user.
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