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单词 platonic solid
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Platonic solid
Platonic solid n. Geometry each of the five regular polyhedra (tetrahedron, cube, octahedron, dodecahedron, icosahedron).
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Platonical body1571
Platonic body1704
Platonic solid1762
1762 T. Walter New Math. Dict. at Tetraedron One of the five regular or Platonic solids, or bodies.
1853 W. T. Brande Dict. Sci., Lit. & Art (ed. 3) 559/1 Hexaedron... One of the five regular or Platonic solids, so called from its having six faces.
1995 School Sci. Rev. June 122/2 Interspersed with these is the chronological pattern of events, with background discussion on the geodesic dome and the mathematics of the Platonic solids.
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