动词短语
中文翻译：加热回火
同义词：
['heat treatment', 'tempering']
例句：
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1.The steel was subjected to heat soak-back before being machined.
钢材在加工前进行了热处理。
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2. During the manufacturing process, the metal undergoes several heat soak-back steps.
在制造过程中，金属经历了多次回火步骤。
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3. The engineer carefully monitored the temperature during the heat soak-back process.
工程师仔细监控了回火过程的温度。