Gradation of sand column and sediment concentration of muddy water and water head are remarkably effective factors for the fine graindistribution in sand column.
砂柱的颗粒组成、水含沙量和入渗水头对滞留分布产生显著的影响。
2
The dune sands are very well sorted and rounded pure quartz sand(>95%) with single mode graindistribution and without suspension materials.
沙丘砂由分选、磨圆好的石英砂组成，含量大于95%，具单众数粒度分布，无悬移质。
3
The effect of the grain size distribution of quartz sand, dolomite and limestone on mixing homogeneity of glass batch was investigated.