| 1. | Complete set up for chemical oxygen demand determinations in seawater
海水化学耗氧量测定系统 |
| 2. | Method improvement for determining chemical oxygen demand in drinking water
饮用水中化学耗氧量测定方法的改进 |
| 3. | Chemical oxygen consumption
化学耗氧量 |
| 4. | Chemical oxygen consumption
化学耗氧量 |
| 5. | Cod chemical oxygen demand
化学耗氧量 |
| 6. | Analysis of water used in boiler and cooling system . determination of chemical oxygen demand . rapid method with potassium dichromate
锅炉用水和冷却水分析方法化学耗氧量的测定重铬酸钾快速法 |
| 7. | Research on new inhibitor of elimination of chloride ion interference in determination of chemical oxygen demand using potassiumdichromate
重铬酸钾法测定化学耗氧量消除氯离子干扰新掩蔽剂的研究 |
| 8. | Monitoring at the stations in dagze county and lhasa city , both on the upper reaches of the lhasa river , and the estuary of the lhasa and yarlung zangbo rivers reports no changes that have taken place to the acidity and basicity , hardness and chemical oxygen consumption ( coc ) of the water
通过对拉萨河上游达孜县、拉萨市以及拉萨河与雅鲁藏布江的汇合处3个点的监测，水的酸碱度、硬度和化学耗氧量在3个点上均无变化。 |
