1. Detention pond and retentionpond are rainwater control structures used in almost every new development project in u.
滞留池和储水池作为雨水控制结构，几乎用于美国的每一个新建项目中。
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2. Detention pond and retentionpond are rainwater control structures used in almost every new development project in U. s.
滞留池和储水池作为雨水控制结构，几乎用于美国的每一个新建项目中。
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3. The main aim of this thesis is to research the transporting regulation and the retention effect of N and P for the different dimensions pond wetland system.
本论文主要研究在不同尺度条件下水塘湿地系统中氮、磷输移规律及截留效应。
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4. The main aim of this thesis is to research the transporting regulation and the retention effect of N and P for the different dimensions pond wetland system.
