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。
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。
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