Many in the industry believe that low-cost 3-d printers for the consumer market will eventually appear.

业界很多人都认为低端3 - D打印机最终会出现在消费市场中。

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Some projects are completely free and provide only the plans for others to build their projects, and some, like the recent crowd of desktop 3-d printers, even provide the means to self-replicate.

有些项目是完全免费的，且只为他人提供构建其项目的计划，并且有些项目，比如最近很热门的桌面3 - D打印机，甚至可提供自复制的方式。

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In January, the global technology company Hewlett-Packard agreed to sell 3-d printers manufactured by Stratasys.

今年1月，跨国科技公司惠普同意销售Stratasys公司制造的三维打印机。

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Prototyping costs have dropped with the advent of 3-D printers and incubators that provide machining tools.

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Stratasys (SSYS) is another maker of 3-D printers and its revenue was up 28% in the fourth quarter.

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Part-time inventors experimenting on cheap 3-D printers might be the next wave of people seeking out his help.

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