名词
中文翻译：红硬钢
同义词：
['red-hot steel', 'hardened steel例句：1. The construction of the bridge required a large amount of red-hard steel.（建造这座桥需要大量的红硬钢。）']
例句：
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1. The construction of the bridge required a large amount of red-hard steel.
建造这座桥需要大量的红硬钢。
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2.The car's engine is made from red-hard steel.
这辆车的引擎是由红硬钢制成的。
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3. The cutting tool was made from red-hard steel to ensure its durability.
这种切割工具是用红硬钢制造的，以确保其耐用性。