| 1. | Granular activated carbon from coal for air purification
净化空气用煤质颗粒活性炭 |
| 2. | Progress on control techniques for indoor air purification
室内污染控制技术研究进展 |
| 3. | Discussion on design of compressed air purification system
压缩空气净化系统的一次创新 |
| 4. | New development in the compressed air purification system
对建立农村医疗保障制度的思考 |
| 5. | Ventilating air purification system of bulk carrier engine room
散货船机舱通风空气净化系统 |
| 6. | Oil - free lubrication air purification
无油润滑及空气净化 |
| 7. | Optimizing method of lukehot regeneration adsorption compressed air purification system
微热再生吸附式压缩空气净化系统的优化方法 |
| 8. | Survey on efficiency of electronic dust - accumulated air cleaner for air purification
电子集尘式空气净化机室内净化效果的现场观察 |
| 9. | New research achievement of compressed - air purification system of ecotec non - oil converter
无油转换器压缩空气净化系统的最新研究成果 |
| 10. | Application of air purification techniques and development of a device for purifying air in tunnel
坑道空气净化技术应用及其装置研制 |
