Water contents of stratiform cloud vary greatly, and have close positive relationship with particlenumberconcentration.
云中含水量在水平方向上的变化大，且与粒子数浓度存在正相关。
2
The fluidized bed aerosol generator was used to aerosol the fly ash, and the Electrical Low Pressure was used to measure the particlenumberconcentration before and after particle aggregation.
采用流化床气溶胶发生器对飞灰进行气溶胶化，采用低压电称冲击器在线测量聚并前后飞灰粒子的数目浓度。
3
The impact of sampling time on concentration of collected bacterium, fungus particles and mid-value diameter of particlenumber are studied by ANDERSEN bioparticle sampler in lab.