低密度聚乙烯是一种很软且不易碎的塑料。
低密度的聚乙烯是PVC很好的替代品，它的生产过程相对简单，也不需要添加化学物质增加柔软性。
Low density polyethylene makes a nice substitute for PVC. It has a simple makeup and doesn't require additives to make it soft and pliable.
高密度聚乙烯和低密度聚乙烯是在名单中排在二位和三位的高聚物。
High-density polyethylene and low-density polyethylene were the second and third place polymers.
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