名词
中文翻译：加热硬化
同义词：
['hardening', 'tempering', 'heat treatment例句：1. The steel undergoes heat hardening to increase its strength.（这种钢材经过热处理以提高其强度。）2. During the manufacturing process', "metals are often subjected to heat hardening.（在制造过程中，金属经常受到热处理。）3. The engineer used a special alloy for heat hardening to improve the material's properties.（这位工程师使用一种特殊的合金进行热处理以改善材料的性能。）"]
例句：
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1. The steel undergoes heat hardening to increase its strength.
这种钢材经过热处理以提高其强度。
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2. During the manufacturing process, metals are often subjected to heat hardening.
在制造过程中，金属经常受到热处理。
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3. The engineer used a special alloy for heat hardening to improve the material's properties.
这位工程师使用一种特殊的合金进行热处理以改善材料的性能。