| 单词 | regular octahedron |
| 释义 | regular octahedron (once / 472773 pages) n WORD FAMILY regular octahedron: regular octahedra, regular octahedrons USAGE EXAMPLESWell-developed crystals are of common occurrence; they usually have the form of the regular octahedron, sometimes in combination with the cube and the rhombic dodecahedron. Various, Encyclopaedia Britannica, 11th Edit...(2012) It crystallizes in regular octahedra, but is usually found as grains or as granular to compact masses. Various, Encyclopaedia Britannica, 11th Edit...(2010) It has a fibrous structure, crystallizes easily in regular octahedrons, presenting often the peculiar arborescent appearance of the fern. Anonymous, A System of Instruction in the Prac...(2010) n an octahedron with eight equilateral triangles as faces Hyper Platonic body, Platonic solid, ideal solid, regular convex polyhedron, regular convex solid, regular polyhedron any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent |
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