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Template Toolkit
Template ToolkitTeTeX
TeTeXTk (ツールキット)
Tk (software)Tomboy (ソフトウェア)
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Ubuntu StudioUdev
UdevUnderscore.js
Underscore.jsUniform Office Format
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Unity (user interface)Universal Network Objects
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Veusz
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VirtualDubVrms
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WhonixWiki.js
Wiki.jsWinSCP
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Xandros