您要查找的是不是：
- 降解retrogradation
- COD降解COD degradation
- 可降解degradable
- 降解CODCOD degradation
- 可降解的degradable
- CODchemical oxygen demand (COD)
- 不可降解的nondegradable
- COD值COD
- 降解的degrade
- 高CODhigh COD
- 低CODlow COD
- COD/PCOD/P
- 降解产物degradation product
- CODαCODα
- 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CODcritical COD
- 高分子降解degradation of polymers
- COD测定COD determination
