名词短语
中文翻译：冷加工硬化
同义词：
['cold work hardening', 'cold working hardening', 'cold processing hardening']
例句：
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1. The steel was subjected to cold work hardening before being machined.
钢在被加工之前经过了冷加工硬化处理。
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2. This process is used for cold work hardening of the metal.
这个过程用于金属的冷加工硬化。
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3. Cold work hardening can improve the strength and toughness of the material.
冷加工硬化可以提高材料强度和韧性。