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 influences of grain diameter, grain shape and zinc content of zinc powder on mechanical zinc plating were analyzed.
分析了锌粉的粒径、颗粒形状、金属锌含量对机械镀锌层的影响。
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