For some people, the crown jewel of Mozilla's XML capabilities is XML user interface language (XUL), a markup language for describing cross-platform user interfaces.

对于有些人来说，Mozilla XML处理能力中皇冠上的珠宝是XML User Interface Language (XML用户接口语言，XUL)，即一种用于描述跨平台用户接口的标记语言。

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XUL: XML user interface language, or XUL, (pronounced as "Zool") is a mark-up language developed by Mozilla, and is an XML application used to describe graphical user interfaces.

XUL： XML用户界面语言(XML User Interface Language)，简称XUL(发音同“Zool”)，是一种由Mozilla研发的标记语言，一个用于描述图形用户界面的XML应用程序。

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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。

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