One single set of synthetic standards of silica matrix will suffice for the determination of as many as 25 associated elements and trace elements in a variety of minerals.
仅用一套二氧化硅为基体的人工标准，就能测定多种单矿物中的25项伴生元素和痕量元素。
2
There are three respects of contrast between high alumina and silica sand in using for induction furnace Lining. They are the sintering technology, the using effect and the synthetic economic results.
本文从烧结工艺、使用效果及综合经济效益三方面就高铝矾土与石英砂在感应电炉炉衬上的应用做了对比。
3
The synthetic methods of the polyamine-silica composite materials are reviewed on the basis of the surface structure of silica gel.