polyynen.聚炔烃POLYabbr.聚乙烯(=polyethylene)pref.多的；聚合的poly-generation多联产polystep reaction多步反应polygenome hybrid多染色体组杂种polyazo-methine聚偶氮甲亚胺Polyenzyme Tables多酶片Polyvinyl hutyral聚乙烯醇缩丁醛polyferrocenyiene聚亚二茂铁基polybenzothiozolen.聚苯并噻唑polystyrene latex聚苯乙烯胶乳polygene sediment多源沉积物