We reach these conclusions:The plant is very important in constructed wetland , and it also have the ability of N , P removal .

本研究主要得出如下结论：植物在人工湿地系统中有着重要的作用，具有一定的去除氮、磷的能力。

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The effect of the plants in CCW is remarkable to NH3-N removal, but unremarkable to phosphorus removal.

廊道式人工湿地水生植物的长势对NH3-N的去除有显著影响，对磷的去除效果影响不大。

youdao

This study investigates the removal of COD and NH3-N by aerobic granule sludge, which is nearly 70% and 90% in average respectively.

本实验考察了整个改变过程中颗粒污泥对COD以及NH_3—N的处理效果，平均去除率分别达70%和90%。

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As the hour of reckoning approached, U.N. officials had counted the removal of about 70 weapons, only a small portion of an estimated 400 that the agency says must go.

CNN: NATO extends deadline for Bosnian Serbs to move weapons