polypropylene random copolymer

例句：

1. 1. The polypropylene plastic is strong and durable.
   这种聚丙烯塑料既坚固又耐用。
2. 2. Polypropylene is commonly used in the production of packaging materials.
   聚丙烯常用于包装材料的生产。
3. 3. The polypropylene film is widely used in agriculture to protect crops from pests.
   聚丙烯薄膜在农业中被广泛使用，用来保护作物免受害虫侵害。