stress-strain circle

例句：

1. 1.The stress-strain circle is a crucial factor in determining the material's strength and deformation.
   应力-应变圈是确定材料强度和变形的关键因素。
2. 2.The engineer used a stress-strain circle to calculate the maximum load that could be applied to the structure.
   工程师使用应力-应变圈来计算结构可以承受的最大载荷。
3. 3. During testing, the stress-strain circle was carefully monitored to ensure safety during the experiment.
   在测试过程中，应力-应变圈被仔细监测，以确保实验过程中的安全性。