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。
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。
Either coarse or column austenite grain can decrease the toughness of welding metal, and the ways to improve the toughness of wel...
奥氏体晶粒粗大及奥氏体柱状晶都能够降低焊缝的韧性，并提出了改善焊缝韧性的途径。
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