pkg orig cnn explains 3-D printing eitm_00000730.jpg
pkg orig cnn explains 3-D printing eitm_00000730.jpg

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    CNN Explains: 3-D printing

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CNN Explains: 3-D printing

CNN's Laurie Segall explains what 3-D printing is and why it matters.

CNN Explains: 3-D printing

CNN's Laurie Segall explains what 3-D printing is and why it matters.