各向异性

例句：

1. 1. The material has anisotropy in its mechanical properties.
   这种材料在机械性质上具有各向异性。
2. 2.In materials science, anisotropy is a key factor in determining the behavior of materials under stress.
   在材料科学中，各向异性是决定材料在应力下行为的关键因素。
3. 3. Due to its anisotropy, the material's strength varies depending on the direction of loading.
   由于其各向异性，材料的强度取决于加载的方向。