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