名词
中文翻译：硬铝合金
同义词：
['hard steel alloys', 'hard metal alloys']
例句：
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1.The car's engine is made from hard aluminum alloys.
这辆车的引擎是由硬铝合金制成的。
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2. He used a piece of hard aluminum alloy to cut through the thick ice.
他用一块硬铝合金来切开厚厚的冰。
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3. Hard aluminum alloys are often used in aircraft construction due to their strength and durability.
由于其强度和耐用性，硬铝合金常用于飞机建造中。