5National Program is The First of Its Kind to Put 3D Printers in High School Students' Hands[EB/OL]. http://www.makepartsfast.com/ 2011/09/2349/national-program-is-the-first-of-its-kind-to-put- 3d-printers-in-high-school-students-hands/. 被引量：1
7Introduction to SOLID Learning[EB/OL]. http://www.stemulate.org/ 2012/05/05/solid-learning/. 被引量：1
8RIT Engineering Student Raves About 3D Printing[EB/OL]. http:// www.dimensionprinting.cmn/successstories/successstoryview.aspx? view=7 l&title=RIT+Engineering+Student+Raves+About+3D+Print- ing. 被引量：1
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