n.聚苯乙烯
The computer is packed in expanded polystyrene before being shipped. 这台计算机运送前用弹性聚苯乙烯包装。
This article deals with the degradation of polystyrene foam in supercritical water. 本文研究了聚苯乙烯泡沫在超临界水中的降解反应。