名词
中文翻译：屏障膜
同义词：
['protective film', 'barrier layer']
例句：
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1.The barrier film prevents water from entering the plant cells.
屏障膜防止水分进入植物细胞。
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2.The barrier film is used to protect the surface of the material from damage.
屏障膜用于保护材料的表层免受损害。
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3.The barrier film helps to keep the air inside the container fresh and clean.
屏障膜有助于保持容器内空气的新鲜和清洁。