| 1. | Methods of measuring dust concentration in flue gas 测量废气中尘埃浓度的方法 |
| 2. | Comparison of different sampling methods for determining dust concentration 3国不同粉尘采样器测定结果的比较 |
| 3. | Methods of measurement for airborne dust concentration in welding environment 焊接环境中气载灰尘浓度的测量方法 |
| 4. | A study on the distribution of dust concentration in workshops of textile plants 棉纺作业场所粉尘浓度分布的研究 |
| 5. | General technical condition for direct reading instrument for dust concentration measurement 直读粉尘浓度测量仪表.通用技术条件 |
| 6. | Present status and development tendency of monitoring technology of dust concentration in our coal industry 我国煤炭行业粉尘浓度监测技术的现状及发展趋势 |
| 7. | Comparison of dust concentration before and after regulation in ceramic industry in long - wan district of wenzhou city 温州市龙湾区陶瓷行业整治前后粉尘浓度对比 |
| 8. | Air quality . stationary source emission . determination of dust concentration by opacimetry with reflected light 空气质量.固定源辐射.用反射光不透明计测定灰尘浓度 |
| 9. | Numerical simulation of distribution regularities of dust concentration during the ventilation process of coal drift driving with exhaust ventilation 抽出式通风煤巷掘进过程中粉尘浓度分布规律的数值模拟 |
| 10. | The results show that the tim increases with the decrease of dust concentration and the increase of spray - air pressure and dust particle size 结果表明,最低着火温度随煤粉质量浓度的减小而升高,随喷吹压力和煤粉粒度的增大而升高。 |