polygenn.多种价元素
POLYabbr.聚乙烯(=polyethylene)pref.多的;聚合的
polyoxyethylated lauryl itaconate聚氧乙基化月桂基衣康酸酯
polycarboxylic type water reducer聚羧酸类减水剂
Polysaccharide from stigma maydis玉米须多糖
polyhexamethylene terephthalamide聚亚己基对苯二甲酰胺
polyethylene glycol mono stearate聚乙二醇单硬脂酸酯
polyoxyethylene alkylphenol ether[化] 聚氧化乙烯烷代酚醚; 烷基苯酚聚氧乙烯醚
Polythene mulching in cold region寒地覆膜