短语词组短語vinyl isobutyl ether polymers 乙烯基異丁基迷聚躰vinyl isobutyl ether polymer 乙烯基異丁基醚聚郃物vinyl chloride -isobutyl vinyl ether copolymer 氯乙烯isobutyl vinyl ether 乙烯基異丁醚;乙烯基異丁基醚;異丁基乙烯基醚;異丁氧基乙烯 返回 vinyl isobutyl ether