采用磁选分离法+稀酸浸泡法联合处理后，使该地石英砂的化学成分达到了优质的生产平板玻璃用硅质原料的国家标准。
The chemical contents in the sand quartz has reached national standards of silicon raw material for plate glass production after combined treating by magnetic separation plus diluted acid dipping.
广西的石灰岩按性质可分为纯质石灰岩、夹硅质石灰岩、夹砂页岩或火成岩的石灰岩三种类型。
According to the nature, Guangxi limestone is separated into three types: pure limestone, siliceous limestone, mixed sand shale or limestone of igneous rock.
研究了养护碱溶液性质和胶砂比与硅质集料砂浆试样膨胀的关系。
The influences of alkali curing solutions and cement aggregate ratios on expansion of mortar bars were investigated.
受砾屑硅质岩、含砾砂屑硅质岩控制。
活动性差的硅铝质砂板岩形成岩体的天然屏障；
工业废渣粉煤灰或河砂一般被用来作为硅质材料。
The industry waste slag fly ash or the river sand is used as the siliceous material.
工业废渣粉煤灰或河砂一般被用来作为硅质材料。
The industry waste slag fly ash or the river sand is used as the siliceous material.
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