名词短语
中文翻译：保护膜
同义词：
['protective film', 'protective coating', 'protective layer']
例句：
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1. The new car has a protecting sheetthat keeps the interior clean and dry.
新车有一个保护膜，保持车内干净且干燥。
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2.The scientist used a protecting sheet to protectthe fragile samples during the experiment.
科学家使用一个保护膜来保护脆弱的样本进行实验。
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3. The engineer designed a protecting sheet toprevent dust and debris from entering the machine.
工程师设计了一个保护膜，以防止灰尘和碎片进入机器。