tyield point的用法和样例：
例句
- The yield point represents the dividing line or transition from the elastic to the plastic region of the curve.
屈服点是弹性变形区域到塑性变形区域之间曲线的过渡点。 - In order to ensure that the structure is stable, the working stresses are kept well below the yield point or the proof stress.
为了保证结构稳定，工作应力应很好地保持在屈服点或弹性极限以下。
