动词
中文翻译：锻造
同义词：
['hardening', 'tempering']
例句：
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1.The steel was subjected to Tuff-nitriding to increase its strength.
钢铁经过热处理以提高其强度。
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2. This process is used in the manufacturing of high-quality steel products.
这个过程用于制造高质量的钢铁产品。
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3. The engineers carefully monitored the temperature during the Tuff-nitriding process.
工程师们仔细监控了热处理过程中的温度。