Gradation of sand column and sediment concentration of muddy water and water head are remarkably effective factors for the fine grain distribution 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
Column-supported steel silo, as a simple and economical structural, is widely used in industry fields including mining, metallurgy, grain and cement industry.
柱支承钢筒仓作为一种简单、经济的结构类型，已广泛应用于矿业、冶金、粮食、水泥等工业领域。
3
Either coarse or column austenite grain can decrease the toughness of welding metal, and the ways to improve the toughness of wel...