硅磷晶是一种化学药剂，向硅磷晶罐中加入硅磷晶，药剂中的化学成份P2O5，经过加药罐转换，向外输出具有防腐阻垢的自来水。经处理后的自来水可直接为工业生产和人民生活提供所需用水。
采用磷、硫、稀土、锶、钠、碳等进行双重细化变质处理过共晶铝硅合金已取得了良好的效果。
The good effect has been gained on the hypereutectic Al Si alloys treated with some double refining and modifying agents such as P, S, RE, Sr, Na, C, etc.
用磷铜合金和四元钠盐变质剂对过共晶铝硅合金进行了变质处理试验。
The modifying experiments on hypereutectic Al - Si alloy were made by addition of sodium flux and P - Cu alloy.
用雪硅钙石作为晶种材料，原水中的碱度对其除磷率的影响不大。
When tobermorite crystals were used as the crystal seeds, the alkalinity of original water had little influence on the phosphate removal.
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