名词
中文翻译：Unknown
同义词：
['aluminium coating', 'aluminum overlay']
例句：
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1. The aluminum coating on the car is very shiny.
汽车上的铝涂层非常闪亮。
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2. The aluminum overlay has protected the surface from scratches.
铝层保护了表面免受刮擦。
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3. The new aluminum overlay has improved the durability of the roof.
新的铝层提高了屋顶的耐用性。