polygenn.多种价元素POLYabbr.聚乙烯(=polyethylene)pref.多的；聚合的polyvinyl butyral cementing agent聚乙烯醇缩丁醛粘合剂Polymetallic sulphide concentrate多金属硫化精矿polycategorial lexical attachment多范畴词汇附加polytetrafluoroethylene capacitor聚四氟乙烯电容器polyurethane plastic sports field聚氨酯塑胶运动场地polyolefine insulation and sheath交联聚烯烃绝缘和护套polyoxyethylated propylene glycol聚氧乙烯化丙二醇polyvinyl chloride asbestos sheet聚氯乙烯石棉卷材poly-aluminum silicate chloride聚硅氯化铝polyether-modified polysiloxane聚醚改性聚硅氧烷