crystallographic polyhedron

crystallographic polyhedron
кристаллографический многогранник

English-russian dictionary of physics. 2013.

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  • Point groups in three dimensions — In geometry, a point group in three dimensions is an isometry group in three dimensions that leaves the origin fixed, or correspondingly, an isometry group of a sphere. It is a subgroup of the orthogonal group O(3), the group of all isometries… …   Wikipedia

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  • Defect — Defect, defects, or defected may refer to: Geometry and physical sciences Defect (geometry), a characteristic of a polyhedron Topological defect Isoperimetric defect Crystallographic defect, a structural imperfection in a crystal Biology and… …   Wikipedia


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