Cardsorting, field studies, participatory design, paper prototype and usability studies, desirability studies, customer emails.

卡片分类，现场研究，参与式设计，纸上原型和用户体验研究，合意性(desirability)研究，客户邮件。

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This paper provides the design and realization of a text clustering prototype system.

本文提出了一种文本聚类系统原型的设计与实现。

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The paper describes the results of tests on prototype size reinforced concrete frame specimens which were designed to represent the column-beam connections in plane frames.

本篇文章描述了对加固后标准尺寸混凝土结构试件进行试验的结果，该试件代表平面框架结构中的梁—柱联接部位。

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But it is not yet clear how many of the many prototype and paper vehicles chasing after the prize have any chance of being part of such an industry.

ECONOMIST: Lift-off for enterprise | The

Work on this "prototype" allowed him to figure out technique, layout and technical details like the type of paper (19-by-13-inch watercolor) and writing instruments (felt-tip pens).

WSJ: Unlikely NY scribe handwrites Good Book in 4 years