短語詞組短語vinyl lenzyl chloride 乙烯基氯芐vinyl l chloride 氯乙烯vinyl pridinium chloride 聚4乙烯吡啶氯化物4 -vinyl lenzyl chloride 乙烯基氯芐poly -4-vinyl pridinium chloride 聚vinyl -chloride -acetate copolymer coatings 氯醋共聚樹脂涂料traditionally vinyl chloride 氯乙烯vinyl chloride copolymer 氯乙烯共聚物 返回 vinyl chloride