- 问题详情:Imaginehavinganidea,drawingitonpaper,bringingittoastoreandseeingitturnedintoaphysicalobject.Thisisnowpossiblewiththehelpof3Dprinters.Suchmachineswereonceusedjustbyuniversitiesandbigcompanies,butnow,storeswith3Dprintingservicesareappearingaroun...
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