| 单词 | polyvinyl acetal |
| 释义 | polyvinyl acetalnoun Chemistry.any of the class of thermoplastic resins derived by the condensation of an aldehyde with polyvinyl alcohol. the slightly yellow, water-insoluble resin produced from partially hydrolyzed polyvinyl acetate and formaldehyde: used chiefly in the manufacture of lacquers, photographic film, and adhesives. Origin of polyvinyl acetalFirst recorded in 1930–35 Words nearby polyvinyl acetalpolyvalent, polyvalent allergy, polyvalent serum, polyvalent vaccine, polyvinyl, polyvinyl acetal, polyvinyl acetate, polyvinyl alcohol, polyvinyl butyral, polyvinyl chloride, polyvinyl formal Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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