名词
中文翻译：化学转换膜
同义词：
['chemical coating', 'chemical barrier', 'chemically modified film']
例句：
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1. The new type of chemical conversion film has been tested on various materials.
新型化学转换膜已对各种材料进行了测试。
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2. The chemical conversion film is used to protect the surface from scratches and wear.
化学转换膜用于保护表面免受刮擦和磨损。
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3. The chemical conversion film is a popular choice for automotive applications due to its durability and resistance to chemicals.
由于其耐用性和抗化学品性能，化学转换膜是汽车应用的热门选择。