The leaching process and nitrogen forms, and the effects of application rate and the depth of soils on nitrogen loss by leaching were also discussed in this paper.

还探讨了氮肥淋溶过程中的氮形态变化，以及施氮量和土层深度对氮肥淋浴损失的影响。

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Based on the situation of Zinc recovery rate and detail analysis of metal loss in process of Zinc metallurgy, several measures are put forword to improve the recovery rate in zhuzhou smelter.

对株洲冶炼厂锌冶炼回收率现状及锌冶炼过程中金属的损失进行了详细的分析，提出了提高锌冶炼回收率的几种措施。

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The concept of relative water loss rate is advanced to judge the degree which actual water loss is higher than theoretical water loss in the process of vacuum cooling.

提出相对失水率的概念，作为比较真空冷却过程中实际失水高于理论失水程度的判断依据。

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