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1. In the local annealing process, the material is heated to a high temperature and then quickly cooled to prevent any permanent deformation.
在局部退火过程中，将材料加热到高温，然后迅速冷却以防止任何永久变形。
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2.The local annealing technique is used to improve the strength and toughness of metals and alloys.
局部退火技术用于提高金属和合金的强度和韧性。
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3. During the local annealing process, the material's microstructure is altered to reduce internal stresses and improve its overall performance.
在局部退火过程中，材料的微观结构被改变以减少内部应力并提高其整体性能。