介质的折射率不因光波在介质中的振动方向的不同而发生改变，其折射率值只有一个，此类介质属于光性均质体，简称均质体。
目前对单轴蠕变的数值模拟时建立的模型为连续均质体，很难真实地模拟实际情况。
Currently, most reconstruction model for uniaxial creep of numerical simulation is continuous homogeneous, which is difficult to simulate actual situation.
岩石的结构是极其复杂的非连续和非均质体，其力学属性具有非线性、各向异性及随时间变化的流变特性。
The structure of rock is extremely complicated discontinuous and heterogeneous body, its mechanics property has non-linear, anisotropism and rheology characteristic, which changed over time.
释放面积，桨的搅拌速度及释放介质均影响脂质体凝胶的溶蚀及药物的释放。
Drug release rate was significantly influenced by release area, stirring speed of peddles and the sorts of dispersion mediums respectively.
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