11、、 质量浓度(mass concentration)： ρ B =m B /V 质量分数(mass fraction) ： w B =m B /m 摩尔分数(mole fraction)：x B =n B / 体积分数(volume fraction) ：φ...
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particulate mass concentration 颗粒物质浓度
mass concentration factor 质量浓度系数
initial mass concentration 初始质量浓度
ozone mass concentration 臭氧质量浓度
mass concentration of oxygen 氧的质量浓度
Minimum morphological deformation mass concentration 最小变形质量浓度
Visibility was negatively correlated with the number density of particles and PM2.5 mass concentration.
2.能见度与颗粒物数浓度、PM2.5质量浓度存在明显负相关性。
参考来源 - 广州大气细粒子粒径分布和化学成分对能见度影响的研究Furthermore voltage, reaction temperature and amine mass concentration are important exterior factor which effect electrolysis.
此外，电压、反应温度、胺的质量浓度等均是影响反应的重要外部因素。
参考来源 - 电器设备蒸发冷却介质的制备及其蒸发冷却特性的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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A laser based technique is proposed which is able to measure and supervise the mass concentration and particle size of smoke and dust in emissions.
提出了能直接测量烟尘和粉尘排放浓度和粒径大小的激光监测技术，具有实时快速、非接触、在线、无需取样和连续测量的优点。
The correct calibration of coefficients in the inversion model for aerosol mass concentration is the precondition of obtaining highly precise results.
正确标定悬浮颗粒物质量浓度反演模型中的系数是得到高精度测量结果的前提条件。
The dust mass concentration measurement based on photometer measurement is widely used nowadays because of its fast, simple and continuous working features.
光度计粉尘质量浓度测量法具有快速、简便和能够连续测定等特点，是目前广泛采用的一种粉尘质量浓度测量方法。
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