BBO crystal has three types ofinclusions, which are disorderly floccose inclusion, the negative-crystal structure ditrigonal pyramid and prismatic inclusions.
分析比较了各类包裹物在晶体中的结晶方位，提出并证实了晶体中的有规则状包裹物具有明显的负晶结构特征。
The order parameter (s) of dye molecules in liquid crystal were determined, and the characteristics of negative dichroic dyes structure were discussed.
同时测定了染料分子在液晶中的有序参数，讨论了负的二色性染料结构的特点。
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