名词
中文翻译：Unknown
同义词：
['aluminum', 'magnesium', 'titanium', 'zinc', 'copper']
例句：
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1. Thenew alloy is lighter than the old one and stronger.
这种新型合金比旧的轻且更坚固。
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2. Aluminum is widely used in construction and manufacturing.
铝在建筑和制造业中被广泛使用。
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3. Copper is often used as a conductive material in electronics.
铜常用于电子器件中的导电材料。