退火

例句：

1. 1.The metal was annealed to remove any internal stresses.
   金属被退火以消除任何内部应力。
2. 2. The chef carefully annealed the steak before cooking it.
   厨师仔细地将牛排退火后再烹饪。
3. 3.The process of annealing is essential for the formation of new materials.
   退火过程对于新材料的形成至关重要。