Some 3D printers spread metal powders on the print table and sinter the pattern with lasers or electron beams, rather than using masks.

比如一些3D印刷机在印刷台铺撒金属粉末之后，采用露光模板以外的激光或电子束方式进行热凝处理来产生样模。

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EOS, a German supplier of laser-sintering 3d printers, says they are already being used to make plastic and metal production parts by carmakers, aerospace firms and consumer-products companies.

EOS是一家德国的激光烧结3d印制机生产商。该公司称其产品已经被汽车制造者，航空企业和生产消费产品的公司用来制造塑料和金属部件。

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Using 3d printers as production tools has become known in industry as "additive" manufacturing (as opposed to the old, "subtractive" business of cutting, drilling and bashing metal).

使用3d印制机作为生产工具在工业上被称作“加法”制造(与传统的对金属进行裁剪、锥钻、击打的“减法”制造相反)。

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EOS, a German supplier of laser-sintering 3D printers, says they are already being used to make plastic and metal production parts by carmakers, aerospace firms and consumer-products companies.

ECONOMIST: 3D printing