名词短语
中文翻译：砂浴回火
同义词：
['sand-tempering', 'sand-tempering process']
例句：
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1. The engineer used sand bathtempering to improve the strength of thesteel.
工程师使用砂浴回火来提高钢铁的强度。
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2. During sand bath tempering, the metal is heated and thencooled in a sand bath to achievea desired hardness level.
在砂浴回火过程中，金属被加热并在砂浴中冷却，以达到所需的硬度水平。
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3. Sand bath tempering is an effectivemethod for improving the toughness and wearresistance of cast iron parts.
砂浴回火是一种有效的方法，用于提高铸铁部件的韧性和耐磨性。