...In other words, the type of symmetry is an issue only when a figure or object is anisotropic. When a homogeneous solid material is anisotropic in some properties, as in Figure 3, a, the material is called crystalline, and when all properties are isotropic, as in Figure 3, b, the material is called amorphous. Some crystalline materials are anisotropic in some properties but isotropic in others. ... *Some terminology explanations that mention "crystalline" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…すなわち,対称の種類が問題となるのは,図形や物体が異方的である場合に限られる。 均質な固体物質が図3のaのようにある性質について異方的であるとき,その物質は結晶質crystallineであるといい,あらゆる性質が図のbのように等方的であるとき,その物質は無定形質あるいは非晶質(アモルファスamorphous)であるという。結晶質の物質の中には,ある性質については異方的であるが,他の性質については等方的であるようなものもある。… ※「crystalline」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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