Water contents of stratiform cloud vary greatly, and have close positive relationship with particle number concentration.
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。
Besides, the influences of sound pressure level, residence time and initial total number concentration on agglomeration were investigated.
同时，研究了声压级、停留时间和气溶胶初始浓度等参数对声波团聚的影响。
Size distributions of number concentration of atmospheric aerosol measured by optical particle counter aboarded on aircraft were analysed.
本文对用光学粒子计数器在飞机上测量的大气气溶胶数密度-粒度谱分布进行了分析研究。
The fluidized bed aerosol generator was used to aerosol the fly ash, and the Electrical Low Pressure was used to measure the particle number concentration 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。
The fluidized bed aerosol generator was used to aerosol the fly ash, and the Electrical Low Pressure was used to measure the particle number concentration 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。
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