Any of numerous synthetic polymers produced chiefly by reaction of dibasic acids with dihydric alcohols and used primarily as light, strong, weather-resistant resins in boat hulls, swimming pools, textile fibers, adhesives, and molded parts.

• 聚脂一种人工合成的聚合物，主要通过二元酸与二羚基醇反应产生，主要在船体、游戏池、织物纤维、黏合剂和铸件上用作轻而强硬的、防风雨的合成树脂