| 1. | Beneficiation removes clay and silica to considerable extent .
富集操作除去粘土和硅石达到相当高的程度。 |
| 2. | Silica, in fact, is a desirable impurity because it is one of the reactants .
硅石实际上是一种有用的杂质，因为它是一种反应剂。 |
| 3. | The commercial product however, containing silica and silicates, has a positive effect .
然而含有硅石和硅酸盐的工业品都有肯定的效果。 |
| 4. | Methods for identification of synthetic moissanite
合成碳硅石的鉴定方法 |
| 5. | Laboratory glassware . laboratory crucibles porcelain and silica
实验室玻璃器皿.瓷制和硅石制实验室坩锅 |
| 6. | Extenders for paints - specifications and methods of test - cristobalite
油漆调和料.规范和试验方法.白硅石 |
| 7. | Standard test method for silica - n - dibutyl phthalate absorption number
硅石的标准试验方法. n -邻苯二甲酸二吸收值 |
| 8. | The phytolith of later pliocene in colorful sand forest of luliang , yunnan
云南陆良彩色沙林晚第三纪地层中的植硅石 |
| 9. | Methods for analysis of glass - glasses of the soda - lime - magnesia - silica type
玻璃分析方法.第1部分:碱碳-镁-硅石型玻璃 |
| 10. | Chemical analysis of chromium ores . determination of silica gravimetric method
铬矿石的化学分析.硅石的测定.重量测定法 |
