silica fume

• 硅灰

silica fume的用法和样例：

例句

1. The analysis indicates that micropacking silica fume works to the density and relative density of RPC, and its pozzolanic effect helps the strength of RPC.
   硅灰的微填充效应有利于提高活性粉末混凝土的密度和相对密度，而火山灰效应有利于提高其强度。
2. Airflow membrane-forming treatment with aluminium chloride as membraneforming agent was carried out after pretreatment of silica grey powder.
   论述先对硅灰石粉进行预处理，然后用三氧化铝等包膜剂对其进行气流包膜处理。