condensation polymer 是可数名词,复数形式为 condensation polymers。常与冠词连用,如 a condensation polymer 或 the condensation polymer。在句子中可作主语、宾语或定语,例如:"Condensation polymers are formed by step-growth polymerization."(缩聚物通过逐步聚合形成。)作定语时通常用单数形式,如 "condensation polymer fibers"(缩聚物纤维)。易错点:不要与 condensation polymerization(缩聚反应)混淆,后者指反应过程,前者指产物。