名词
中文翻译：Unknown
同义词：
['hardness', 'toughness', 'durability例句：1. The file hardness of the steel is crucial for its strength and durability.（钢的硬度对于其强度和耐用性至关重要。）2. The engineer carefully measured the hardness of the material before making any decisions.（工程师在做出任何决定之前，仔细测量了材料的硬度。）']
例句：
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1. The file hardness of the steel is crucial for its strength and durability.
钢的硬度对于其强度和耐用性至关重要。
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2. The engineer carefully measured the hardness of the material before making any decisions.
工程师在做出任何决定之前，仔细测量了材料的硬度。
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3. The new design aims to increase the file hardness of the product, making it more durable and resistant to wear.
新设计旨在提高产品的硬度，使其更耐用且抗磨损。