We also can supply active silica powder of every specification, Sediment time not lower than 45 minutes.
我公司对各种规格的硅微粉均可提供活性硅微粉，沉降时间不少于45分钟。
In this paper, the active silica powders were prepared from the silica powders that were subject to surface chemical modification in dry process.
本文介绍了硅微粉的主要性能和用途、硅微粉原料的加工和提纯技术以及硅微粉的生产技术。
As a kind of information material, spherical fused silica is one of the most active areas.
作为信息材料，球形石英一种是最活跃的地区之一。
The hydrocarbon cracking catalysts prepared by the silica rich REHY as an active component possessed high cracking activity, low coke formation and high metal tolerance...
用该富硅分子筛作为活性组分制备的烃类裂化催化剂，具有活性高、积炭量低和较强的抗重金属污染能力。
The active sites on bare silica were briefly discussed.
同时，简单的讨论了二氧化硅表面存在的活性中心。
The active sites on bare silica were briefly discussed.
同时，简单的讨论了二氧化硅表面存在的活性中心。
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