Much like your printer prints ink on a page, 3D printers spit out material, whether it be plastic, metal, or even concrete, to form a 3-dimensional object.

就像墨水打印机在纸上打印一样，3D打印机是用材料打印，不管是塑料、金属，甚至是混凝土，形成一个三维物体。

The concept is quite simple: much your like printer prints ink on a page, 3D printers spit out material - whether it be plastic, metal, or even concrete- to form a 3 dimensional object.

这个概念非常简单：很像打印机在页面上打印墨水，3D 打印机吐出材料——无论是塑料、金属， 甚至是混凝土——形成一个 3 维对象。