It's built with XUL, an XML-based user interface description language that is also used in the regular Firefox desktop browser.

与普通Firefox桌面版浏览器相同，Fennec也由XUL(一种基于XML的用户界面描述语言)构建。

youdao

As the name suggests, Libglade lets you read the Extensible Markup Language (XML) format that glade USES to store its user interface description.

顾名思义，Libglade支持读取可扩展标记语言(xml)格式，glade用XML保存用户界面描述。

youdao

But general methods for user interface description are mainly used to specify the layout and style of user interface. Few provide support to specify dynamic behaviors.

但一般用户界面的抽象描述方法主要针对界面的布局和风格，缺乏对用户界面交互行为描述的支持。

youdao