您要查找的是不是：
- 降解 retrogradation
- COD降解 COD degradation
- 可降解 degradable
- 降解COD COD degradation
- 可降解的 degradable
- COD chemical oxygen demand (COD)
- 不可降解的 nondegradable
- COD值 COD
- 降解的 degrade
- 高COD high COD
- 低COD low COD
- COD/P COD/P
- 降解产物 degradation product
- CODα CODα
- 石油烃的微生物降解 microbial degradation of petroleum hydrocarbon
- COD特征值 characteristic value of COD
- 白羊草灌丛草地优势种牧草营养物质及瘤胃降解动态研究 Study on Nutrients of Dominant Species of Forage and Dynamics of the Rumen Degradability in Old World Bluestem Shrub Rangeland
- 临界COD critical COD
- 高分子降解 degradation of polymers
- COD测定 COD determination
