名词
中文翻译：包渗碳
同义词：
['carburization', 'carbonitriding']
例句：
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1.The process of pack carburizing is used to improve the wear resistance of steel parts.
包渗碳过程用于提高钢件的耐磨性。
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2.In this case, pack carburizing was applied to the surface of the tool to increase its hardness.
在这种情况下，对工具表面应用了包渗碳以提高其硬度。
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3. Carbonitriding is a technique that involves using a mixture of gases to coat the surface of metal parts with a layer of carbon and nitrogen compounds.
碳氮共渗是一种技术，它使用气体混合物来给金属部件的表面涂覆一层碳和氮化合物层。