If the polymorphic forms have different crystalline structures, there may be differences in both their physical and chemical properties, which could affect their performance as drug substances.
如果多晶型具有不同的晶体结构，那么它们的物理属性和化学属性都会存在差异，而这两方面的属性会影响药物的性能。
Based on the finite element model, the effects of the geometrical and physical parameters of damping materials on damping properties of composite structures were analyzed.
利用该有限元模型分析了各层阻尼材料的几何及物理参数对复合结构阻尼性能的影响。
On the basis of the finite element model, the effects of the geometrical and physical parameters of damping materials on damping properties of composite structures are studied.
利用此有限元模型研究了各层阻尼材料的几何及物理参数对复合结构阻尼性能的影响。
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