The distribution of inhomogeneous thermo-emf along the copper-iron thermoelectrode is described as a stationary ergodic random process.

不均匀热势铜铁合金热度上分布可描述为各态历经平稳随机过程。

The functionally graded layers are inhomogeneous along the thickness direction, while the piezoelectric layer is homogeneous;both possess material orthotropy.

假设上下功能梯度层材料厚度连续变化，而压层则是均匀材料，并且它们都是正交各向异性。