self-stiffness

例句：

1. 1.The material has a high self-stiffness, which makes it difficult to mold.
   这种材料具有很高的自硬性，这使得它难以成型。
2. 2. In the construction industry, self-stiffness is a crucial factor in determining the strength and durability of structures.
   在建筑业中，自硬性是决定结构强度和耐久性的关键因素。
3. 3.The engineers were concerned about the potential for self-stiffness issues during the installation process.
   工程师们担心安装过程中可能出现的自硬性问题。