名词
中文翻译：保护膜
同义词：
['protective layer', 'protective cover', 'protective casing']
例句：
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1. The newcar has a protective foil that keeps it from scratches.
新车有一层保护膜，防止刮伤。
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2.The scientist used protective foil to protect the samples during transport.
科学家在运输过程中使用了保护膜来保护样本。
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3. The protective foil was designed to prevent fingerprints from being left on the surface.
这种保护膜设计用来防止指纹留在表面上。