| 1. | Many natural fibers decay rapidly when exposed to aerobic cultures .
许多天然纤维在需氧菌的侵袭下则迅速腐坏。 |
| 2. | This is true for bod removal, aeration and biological growth .
这对生化需氧量的去除，通气，生物生长都是适用的。 |
| 3. | In aerobic systems, oxygen is the terminal electron acceptor and is reduced .
在需氧体系中，氧是末端电子接受体并且被还原。 |
| 4. | The other curve shown in fig 1.5 corresponds to the biochemical oxygen demand (bod) .
图1-5的另一曲线相当于生化需氧量（BOD）曲线。 |
| 5. | Water quality - determination of the chemical oxygen demand
水质.化学需氧量的测定 |
| 6. | Cod water quality - determination of chemical oxygen demand
水质.化学需氧量的测定 |
| 7. | Photo of chemical oxygen demand in the kai tak nullah
启德明渠kn4的化学需氧量图片 |
| 8. | Exploration of the problems of cod determination method
化学需氧量测定法存在问题探讨 |
| 9. | Cod verification regulation of chemical oxygen demand meters
化学需氧量 |
| 10. | Photo of biochemical oxygen demand bod5 in the river beas
图片双鱼河rb3的五天生化需氧量 |
