secondary stage annealing

例句：

1. 1.The process of secondary stage annealing is crucial for the quality of the final product.
   次级阶段退火过程对于最终产品的质量至关重要。
2. 2. During the secondary stage annealing, the material is heated to a specific temperature and then cooled rapidly.
   在次级阶段退火过程中，材料被加热到特定温度，然后迅速冷却。
3. 3. The results of the secondary stage annealing test showed that the material had improved its strength and toughness.
   次级阶段退火测试的结果表明，材料的性能得到了提高，强度和韧性都有所增强。