grain diameter 颗粒直径 ; 粒径
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
grain equivalent diameter 颗粒等效直径
Transmission electron microscopy (TEM) points out variable nanometric diameter grain and some small agglomerates.
透射电镜（TEM）发现多种直径不同的纳米尺度颗粒和聚集。
The casting is usually a fine grain casting with a very fine-grained outer diameter, which is resistant to atmospheric corrosion, a typical situation with pipes.
这种铸件通常为外径处晶粒非常细小的细晶粒铸件，能耐大气腐蚀，典型的情况是管子。
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。
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