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[求助]
求助以下文献,哪位大神帮帮忙啊,万分感谢!!!
1、Stability of the Silica Sols Prepared by Acid/Base Two-Step Catalytic Sol-Gel Process
2、Investigation on Viscosity of Silica Sol Catalyzed by Nitric Acid
3、Fractal of silica sol during sol-gel process
4、Improving thermal stability of silica sol in the in-situ polymerization of PET-SiO2 by modifying silica sol with PVA
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