anisotropic elastic beam

例句：

1. 1.The material is anisotropic, meaning it's not uniform in all directions.
   这种材料是各向异性的，意味着它在所有方向上都不是均匀的。
2. 2. The paint was applied in a way that made the surface anisotropic, affecting how light interacted with it.
   油漆被涂覆的方式使得表面各向异性，影响了光与它相互作用的方式。
3. 3. The structure of the crystal is anisotropic, which affects its physical properties.
   晶体的结构是各向异性的，这影响了它的物理性质。