n.硅石；矽土
Our company has our own silia stone moutain and silica powder producing plant. 我公司有自己的硅石矿山和硅石粉加工厂。
The government sets up new health standard for respirable silica dust in the air of workplace. 政府出台了新的工作场所空气呼吸性矽尘卫生标准。
n.长方形会堂；长方形教堂
n.硅酸盐
硅酸盐
n.铝硅酸盐(硅酸铝)
n.硼硅酸盐
n.页硅酸盐
