名词
中文翻译：干热处理
同义词：
['dry heat treatment', 'dry hardening']
例句：
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1.The steel was subjected to dry tempering before being machined.
钢材在被加工前进行了干热处理。
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2. Dry tempering is a technique used in metalworking to improve the strength and toughness of the material.
干热处理是一种金属加工工艺，用于提高材料的强度和韧性。
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3. During dry tempering, the temperature is gradually increased to achieve the desired properties.
在干热处理过程中，温度逐渐升高以达到所需的性能。