degradationn.降格;堕落;退化
degradation conditions降解反应条件
degradation assessment退化评估
degradation parameters降解系数
degradation succession退化演替
degradation production降解产物
degradation mechanisms降解机理
degradation with aging老化降解
degradation selectivity选择性降解
degradation by organism生物降解
degradation-resistant抗降解的