名词
中文翻译：冷硬材料
同义词：
['cold', 'hard', 'brittle', 'rigid', 'cold-hardened material']
例句：
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1.The engineer used a new type of cold-hardened material to make the machine stronger.
工程师使用一种新型的冷硬材料使机器变得更强壮。
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2. The car was made from cold-hardened steel, which is very durable and resistant to wear.
这辆车是用冷硬钢制造的，非常耐用且抗磨损。
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3. The scientist used cold-hardened material to create a new type of superconductor.
科学家使用冷硬材料创造了一种新型的超导体。