The mixture of aerobic and anaerobic sludge is used to culture denitrifying bacteria using ammonium as donors in anoxic reactor. The aim of NH3-N degradation in anoxic reactor is achieved.

将好氧污泥与厌氧污泥混合培养，在缺氧反应器中培养出了厌氧氨氧化细菌，实现了在缺氧反应器中进一步降解NH3-N的目标。

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Additionally, the semi-mixture model could be efficiently applied in forecasting N and P losses of these cropping lands in this region.

不完全混合模型可很好应用于研究区域农耕地氮、磷流失。

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METHODS The CCK-4 peptides were condensed from N-protected Trp, met, Asp and C-protected Phe by Mixture anhydrides method, resulting in total yield of 38.5%.

方法以N -保护的色氨酸、甲硫氨酸、天门冬氨酸和C -保护的苯丙氨酸为原料，采用混合酸酐法合成了CCK四肽，总收率38.5%。

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