... 缓慢下沉顶板 gradual sagging roof 颗粒直径 grain diameter 粒径累积曲线 grain size accumulation curve ...
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soil grain diameter accumulation curve 土壤粒径累积曲线
Mean grain diameter 平均粒径
cobblestone grain diameter 石子粒径
average grain diameter 平均粒径 ; 晶粒平均直径
The zinc powders are classified as ordinary, fine and ultra-fine according to the grain diameter and spherical, lamellar and irregular according to the grain shape.
锌粉按粒径大小可分为普通锌粉、细锌粉和超细锌粉，按形状可分为球状锌粉、片状锌粉和不规则形状锌粉。
The average grain diameter as determined from a random cross section.
从材料任一横截面上测量的晶粒直径的平均值。
There is a certain relation between the porosity and the average grain diameter.
平均粒径与孔隙率存在一定关系；
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