1.A used value is in principle the value used for rendering, but a user agent may not be able to make use of the value in a given environment.
一般使用值就是渲染页面所用的值，但是一个浏览器可能在给定的环境中不能够使用这个值。
2.Inside Rails, you want to be able to identify an iPhone user agent in the ApplicationController for eventual use in a before filter.
在Rails内部，您需要能够在ApplicationController中识别iPhone用户代理以便最终在before过滤器中使用。
3.You can block access to any of them by including the bot name on the User-Agent line of an entry.
您可以在条目的User-Agent行中包含漫游器名称来拦截对网页的访问。
4.The name of the header should be converted to lower-case and any dashes replaced with underscores, as in "$http_user_agent" .
标头的名称应该被转换为小写，任何破折号用下划线代替，如“$http_user_agent”。
5.This doesn't affect the file size as much but requires less memory for the user agent to decompress the image into a pixel map.
这虽然不大会增加文件大小但对于用户代理来说它需要更少的内存来把图片解压为像素地图。
6.When a user visits a portal application through a KIOSK, the client shown to the portal server is determined by the user agent.
当用户通过KIOSK访问门户应用程序时，客户端显示给门户服务器的信息由用户代理决定。
7.While useful, the many XML Schema mechanisms are simply too insufficient and too ambiguous to be of value to a user agent developer.
很多XMLSchema机制虽然很有用，但对于用户代理开发人员来说，要么过于简单，要么含混不清，没有多少价值。
8.Finally, we added a type attribute value, which is optional and is only there as an advisory hint to the user agent.
最后，我们添加了一个type属性值，这是可选的，放在这里是作为给用户代理的一个咨询提示。
9.The name used to refer to a specific user agent .
用于引用特定用户代理的名称。
10.User Agent Switcher Extension - Allows you to define user agents and switch user agents to simulate different devices.
UserAgentSwitcherExtension–允许您定义用户代理以及切换用户代理来模拟不同设备。