名词
中文翻译：自退火
同义词：
['self-cooling', 'self-remelting']
例句：
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1. Self-annealing is a process where materials cool down naturally and recover their original shape.
自退火是一种材料自然冷却并恢复其原始形状的过程。
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2. The alloy was self-annealed to improve its strength.
这种合金经过自退火处理以提高其强度。
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3. During the cooling process, the material will self-anneal if it's not properly sealed.
在冷却过程中，如果材料没有正确密封，它将会发生自退火。