isoelastic

例句：

1. 1. The material is isoelastic, meaning it responds uniformly across its length.
   这种材料是同向的，意味着它在长度上均匀响应。
2. 2.The isoelasticity of the material can be used to predict its behavior under different stress conditions.
   材料的等向性可以用来预测在不同应力条件下的行为。
3. 3. In isoelastic materials, the stress and strain are directly proportional.
   在等向材料中，应力和应变直接成正比。