1. 硫酸法生产钛白粉的副产品——七水硫酸亚铁为原料,采用复合氧化剂合成聚合磷硫酸铁粉体,探讨了合成聚合磷硫酸铁的最佳工艺条件。
The powdery polyphosphate ferric sulfate was prepared from iron vitriol, the byproduct in titanium pigment production by sulfuric acid process, and complex oxidant.

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2. 果冻一包果冻,混合一杯和饮料,我从怀孕个客户告诉这有助于这么多。
Take a pack of jello and mix a cup of water with it and drink it. I am told from seven pregnant clients this helps so much.

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3. 果冻一包果冻,混合一杯和饮料,我从怀孕个客户告诉这有助于这么多。
Take a pack of jello and mix a cup of water with it and drink it. I am told from seven pregnant clients this helps so much.

来自互联网