1.
Methods for testing the performance of dust particle counter--Particle concentratio
GB/T6167.2-1985尘埃粒子计数器性能试验方法颗粒数浓度
2.
Study on Aerosol Number Concentration, Size Distribution and the Particle Formation and Growth Process;
大气颗粒物个数浓度、粒径分布及颗粒物生成
3.
The Geiger counter registered a high concentration of radioactive particles.
盖革计数器示出放射性粒子的高浓度。
4.
Study on the Pollution Characteristics of Particle Number Density in Guangzhou during January 2008
2008年1月广州颗粒物数浓度污染特征
5.
Numerical Analysis of Influences on Vortex Pump Exterior Characteristics for Solid Particles Diameter and Concentration
固相粒径和浓度对旋流泵外特性影响数值分析
6.
Numerical Simulation for the Motion of Dilute Solid Particles in Centrifugal Pump
离心泵内低浓度固体颗粒运动的数值模拟
7.
Size Distribution and Source Apportionment of Atmospheric Particle Number Concentration in Winter in Beijing
北京冬季大气颗粒物数浓度的粒径分布特征及来源
8.
Numerical Simulation on Dynamics Model of Alumina Concentration and Crystal Particle Size during Seeded Precipitation Process;
晶种分解过程中氧化铝浓度及晶体粒度动力学模型的数值模拟
9.
concentration coefficient of sedimentatio
沉积[的]浓度系数
10.
concentration coefficient of diffusion
扩散[的]浓度系数
11.
If an aerosol counter is used to monitor the concentration of particles in the emerging air, one finds that the concentration falls off with decreasing flow rate.
如果用一台气溶胶计数器检测射出气流中的粒子浓度，就会发现浓度随流速的降低而减少。
12.
The annual concentration of the particulate in 101 cities exceeded Grade III, accounting for 29.2% of the cities.
其中101个城市颗粒物年均浓度超过三级标准，占统计城市数的29.2%。
13.
Non-Parameter Statistical Analysis of Impacts of Meteorological Conditions on PM Concentration in Beijing
气象因素对北京市大气颗粒物浓度影响的非参数分析
14.
The particle number increased with surfactant and initiator concentration though the data are insufficient for evaluating the nature of these relationships.
粒子数随表面活性剂和引发剂的浓度而增加，虽然数据还不足以评价这些关系的本质。
15.
Research on Measurement Mothod of the Concentration and Size Distribution of Indoor Suspended Particulate Matters
室内悬浮颗粒物浓度与粒径分布测量方法研究
16.
Experimental Research on the Diameter and Concentration of Soot Particles by Light Scattering
光散射法探测煤烟粒子粒径和浓度的实验研究
17.
The Affect of Emulsion Concentration on Particle Sizing by Using Light Extinction Method
消光法乳剂颗粒粒径测量中浓度影响分析
18.
Percentage of Particulate Concentration Grades in Urban Air in 341 Cities
341个城市空气中颗粒物浓度分级比例