plastic equation of rolled piece

例句：

1. 1. The plastic equation is used to predictthe deformation of materials under various loads.
   塑性方程用于预测材料在各种载荷下的变形。
2. 2.In this study, we developed a newmodel to calculate the plastic equation for therolling process.
   在本研究中，我们开发了一个新的模型来计算轧制过程的塑性方程。
3. 3.The plastic equation plays a crucial role inthe design and optimization of mechanical components.
   塑性方程在机械组件的设计和优化中起着至关重要的作用。