名词短语
中文翻译：清洁硬化
同义词：
['clean hardening', 'clean hardening process']
例句：
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1.The steel was cleaned and hardened before being used in the construction.
钢在被用于建筑之前，先进行了清洗和硬化处理。
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2. The process of cleaning and hardening is crucial for the quality of the final product.
清洗和硬化过程对于最终产品的质量至关重要。
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3. The company uses a special method to clean and harden its products, ensuring they meet high standards.
该公司采用一种特殊的方法来清洗和硬化其产品，确保它们符合高标准。