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In mathematics, a rod group is a three-dimensional line group whose point group is one of the axial crystallographic point groups. This constraint means that the point group must be the symmetry of some three-dimensional lattice. Table of the 75 rod groups, organized by crystal system or lattice type, and by their point groups: The double entries are for orientation variants of a group relative to the perpendicular-directions lattice. == See also == * Point group * Crystallographic point group * Space group * Line group * Frieze group * Layer group 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Rod group」の詳細全文を読む スポンサード リンク
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