结果表明，初始钨粉粒径越小，制备得到钨块的密度越小，晶粒平均直径也越小；
The results show that the smaller the particle size of tungsten powders, the lower the density and the smaller the grain size of the sintered tungsten block.
采用平均直径法对一幅经过处理的晶界图像进行晶粒度计算。
The average diameter method was adopted to compute the grain size for an image processed about grain-edge.
采用平均直径法对一幅经过处理的晶界图像进行晶粒度计算。
Calculate the grain size from an image processed including grain-edge by average diameter method.
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