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二氧化硅颗粒物。A：经分离提纯后滤膜上(C1煤)的二氧化硅颗粒物(×40, 000)；B：二氧化硅颗粒物局貌(×100, 000)；C：TEM-EDX(C1)。
Silica particles. A: After purification filter membrane (C1 coal) of silicon dioxide particles (×40, 000); B: Bureau of silica particles (×100, 000); C: TEM, EDX (C1).
