| 1. | The crude oil is chromatographed over silica gel .
粗制油状物用硅胶进行色谱分离。
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| 2. | 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。
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| 3. | The oxidation rates are fastest in freshly cleaned silica vessels .
在新清洗的二氧化硅容器中，氧化速度是最快的。
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| 4. | When silica is heated until fluid and then cooled, it forms a glass .
把氧化硅加热至流动，然后冷却，它就形成一种玻璃。
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| 5. | The free hydroxyl ion is involved in a further reaction with the silica network .
游离的氢氧离子会进一步和硅氧网络反应。
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| 6. | 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。
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| 7. | Frictional behavior is modified by colloidal silica or starch deposition .
耐磨损性能可以通过在织物上沉淀胶状硅或淀粉一类物质而得到改善。
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| 8. | This reaction is not in itself considered weakening since the silica network has not been broken .
这一反应本身不会形成弱化，因为硅氧网络没有破坏。
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| 9. | Silicon, naturally occurring in the form of silica and silicates, is the most important semiconductor for the electronics industry .
在自然界从硅酸盐和二氧化硅形式存在的硅是电子工业中最重要的半导体原材料。
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| 10. | Methods for chemical analysis of silica sand for foundry
铸造用硅砂化学分析方法
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