| 1. | Water quality - determination of the chemical oxygen demand
水质.化学需氧量的测定 |
| 2. | Cod water quality - determination of chemical oxygen demand
水质.化学需氧量的测定 |
| 3. | Method for determination of active oxygen content in manganese ores
锰矿石中有效氧量的测定 |
| 4. | Copper and copper alloys - determination of oxygen content
铜及铜合金化学分析方法氧量的测定 |
| 5. | Determination of the standard oxygen consumption of the crested ibis nipponia nippon
人工饲养朱?耗氧量的测定 |
| 6. | Water quality - determination of the chemical oxygen demand - dichromate method
水质化学需氧量的测定重铬酸盐法 |
| 7. | Samarium cobalt permanent magnet alloy powder - determination of oxygen content
钐钴永磁合金粉化学分析方法氧量的测定 |
| 8. | Determination of oxygen content
氧量的测定 |
| 9. | Municipal sewage . determination of chemical oxygen demand . potassium dichromate method
城市污水.化学需氧量的测定.重铬酸钾法 |
| 10. | Methods for chemical analysis of titanium diboride powder . determination of oxygen content
二硼化钛粉末化学分析方法.氧量的测定 |
