This method owns advantages of saving energy, high efficiency, high nitrogen content, steady chemical composition, lower impurity, powerful capacity and lower cost.

此方法具有节能高效、产品含氮高、化学成分稳定、杂质含量低、生产能力大、成本低等优点。

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Finally, the chemical trend and some experimental facts of transition impurity energy levels are qualitatively explained.

最后定性地说明了过渡元素杂质能级的化学趋势和一些实验事实。

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First, the project analyses the quality of natural water and the influence of impurity on chemical water treatment, and then chooses the chemical water treatment technics of power plant.

本课题首先分析了自然水水质及所含杂质对化学水处理的影响，然后进行了电厂化学水处理工艺分析。

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