Calculate the grain size from an image processed including grain-edge by average diameter method.
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 increase in average grain size of a polycrystalline material, for most materials, an elevated-temperature heat treatment is necessary.
在多晶体材料中晶粒平均尺寸的增加，对大多数材料来说，这需要在一定温度下进行热处理。
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。
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