The difference between par-ticle mass concentration and Bosch smoke number is indicated. 指出微粒的質量濃度與波許煙度的不同。
The influence of the temperature and relative humidity upon aerosol mass concentrations distributions has been discussed. 摘要從理論上分析了溫度和相對濕度對氣溶膠質量濃度分佈的影響。