- 问题详情:Scientistsclaimtohavedevelopedarevolutionarynewgiant3Dconcreteprinterthatcanbuilda2,500-square-foothouseinjust24hours.The3Dprinter,developedbyProfessorBehrokhKhoshnevisfromtheUniversityofSouthernCalifornia,couldbeusedtobuildawholehouse,layerb...
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