In addition, capabilities like the multi-document interface (MDI) — called JInternalFrame in Swing — are not part of the framework but are left to the underlying window manager.

此外，多文件接口(multi - document interface, MDI)——在Swing中称为JInternal Frame——等功能不是框架的一部分，它位于基本的窗口管理器的左侧。

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The developed programs of application have multi document and multi window interfaces.

所研制的应用程序具有多文档、多窗口图文界面。

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Technological changes such as the rise of collaboration tools make it easier to multi-task: you can have a chat window, a word-processing document, a Web browser, and other applications all open at the same time on your computer, and switch easily between them.

FORBES: Tackling The Multi-tasking Work Environment