A rigid, clear thermoplastic polymer that can be molded into objects or made into a foam that is used to insulate refrigerators.
A rigid, clear thermoplastic polymer that can be molded into objects or made into a foam that is used to insulate refrigerators.
聚苯乙烯一种硬而明亮的热塑性聚合物，它能被铸成物件或制成用来给冰箱隔热的一种泡沫.