volume average particle diameter 体积平均粒径
average particle diameter method 平均粒径法
The pneumatic conveying experiments for sand with average particle diameter 0.
在水平T型分支管道中，用压缩空气对平均粒径分别为0。
By the mass-weighted average, the distribution function of volume, area and diameter for graphite particle were obtained.
通过质量加权平均，给出了石墨粉尘的体积、面积和直径分布函数。
Particle size distribution and average diameter are tested by small-angle X-ray scattering.
采用X光小角散射法测试其颗粒分布和平均粒度。
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