A trademark used for a copolymer of vinyl chloride and acrylonitrile employed in making fire-resistant, insect-resistant, easily dyed textile fiber.是什么意思_A trademark used for a copolymer of vinyl chloride and acrylonitrile employed in making fire-resistant, insect-resistant, easily dyed textile fiber.在线翻译_英语_读音_用法_例句