| 单词 |
rotoreflection axis |
| 释义 |
rotoreflection axis rotoreflection axis[¦rōd·ō·ri¦flek·shən ‚ak·səs] (crystallography) A type of symmetry element that combines a rotation of 60, 90, 120, or 180° with reflection across the plane perpendicular to the axis. Also known as rotatory reflection axis. |
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