-
发表于:2017-04-27
Atriangularpyramid.TheshapeofawatermoleculeissuchthateachH2Omoleculeissurroundedbyfourneighboursarrangedintheshapeofatriangularpyramid-betterknownasatetrahedron....
-
发表于:2017-05-02
Drawthetriangularprismandgetpointsonthesurface.Surgerymagnifierseries,weaksighttreatmentmachineseries,laddertriangularprism.Therearesixorthographicviews.Pleaseimaginethed...
-
发表于:2018-06-01
Thisislandistriangularinshape.Mostanimalshavetriangularvocalcords.Thesetriangularpatternsshowyouthestateofyourenvironment.EuropeanleeknaturalizedinGreatBritain;leavestria...