非均质介质是指多孔介质的某一性质（如渗透系数、导水系数或导热性等）随点的空间位置（坐标）而变化，在多孔介质中的不同部位渗透系数等参数均有差异。
... nonisotropic materials 各向异性物质 nonisotropic medium 非均质介质 nonisotropy 各向异性 ...
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从电磁场基本方程组出发，给出非均质介质中绝缘子表面电荷积聚的规律，揭示其物理本质和关键影响因素；
This paper deals with the basic mechanism of surface charge accumulation on the insulating spacer used in high voltage apparatuses.
这类非均质介质基础的极限承载力计算目前常用的是汉森加权平均法和迈耶霍夫的双层地基承载力计算公式这两种方法。
Up to now, Hansen's method and Meyerof's method for two-layered subsoils are the only two options for estimating the bearing capacity.
如何根据研究对象的范围和精度要求合理地表征裂隙岩体介质的非均质性是裂隙岩体渗流数值模拟的关键点和难点。
It is the key and difficulty to choose right method to characterize the high heterogeneity of fractured rock media on the basis of range and precision of study object.
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