cupping ductility value

例句：

1. 1.The engineer used a cupping ductility value to determine the material's strength.
   工程师使用缩颈塑性值来确定材料的强度。
2. 2. The study found that the cupping ductility value had a significant impact on the material's performance.
   研究发现，缩颈塑性值对材料的性能有显著影响。
3. 3. The engineer used the cupping ductility value to optimize the design of the structural components.
   工程师利用缩颈塑性值来优化结构组件的设计。