degradationn.降格;堕落;退化
degradation energy降解能
Degradation strain降解菌
Degradation levels退化等级
degradation reason退化原因
Degradation trends降解动态
degradation enzyme降解酶
Degradation sugars降解糖
degradation factor递降系数,降级因数,递降因数,递降因子
degradation signal降解信号
degradation device降解装置