The degree of crystallinity can be increased by annealing in an inert atmosphere. 结晶度可通过在惰性气体中的退火处理来提高。
In the process known as annealing , we heat the steel above the critical temperature and permit it to cool very slowly. 在通常所说的退火的热处理过程中，我们把钢加热到临界温度以上，再让它慢慢冷却。
