We build prototypes for several reasons, all of which largely boil down to cost.

我们因为一些原因构建产品原型，这些原因绝大多数出于成本的考虑。

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NASA commissioned Goodyear to build prototypes of an inflatable space station, which looked like a big rubber inner tube.

NASA后来又委托了固特异公司建造了一艘可充气空间站的雏形，它看起来就像是一块巨大的橡皮内胎。

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The Media Lab houses very creative people (some of them leading-edge users) who build prototypes of new ideas and potential products based upon their own interests and needs.

媒体实验室有许多有极富创意的人材(有些是尖端使用者)，这些人因兴趣及需要，建立了许多构想及具潜力的产品原型。

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Morrisette is a living lab where students test materials and build prototypes.

WSJ: Visiting Rural Studio's Modern Architecture in Alabama

Publicly traded Mechanical Technology has recruited Gillette to produce methanol fuel cartridges and has an agreement with Samsung Electronics to build prototypes.

FORBES: Magazine Article

It is a system of metal construction where parts can be attached to each other, which is often used in industry to build prototypes.

BBC: 'Meccano-style' bridge opens in Bolton