polyxene

例句：

1. 1. The polyethylene film is used to wrap food in order to keep it fresh.
   聚乙烯薄膜用于包裹食物以保持其新鲜。
2. 2. Polypropylene is a type of plastic that is commonly used for packaging and manufacturing.
   聚丙烯是一种常用于包装和制造的塑料类型。
3. 3.The polyethylene pipes are resistant to corrosion and are widely used in industrial applications.
   聚乙烯管道具有抗腐蚀性，广泛应用于工业应用中。