strain-optical relaxation

例句：

1. 1.The strain-optical relaxation technique is used to measure the stress in a material under high temperature conditions.
   应变光学松弛技术用于测量材料在高温条件下的应力。
2. 2.The strain-optical relaxation effect has been observed in various materials, including metals and polymers.
   应变光学松弛效应已在金属和聚合物等多种材料中观察到。
3. 3. Strain-optical relaxation is a fundamental concept in the study of nonlinear optical phenomena.
   应变光学松弛是研究非线性光学现象的基本概念。