In order to solve the problem of pollution in confluence drainage system, which is caused by initial rainwater, setting storage pond under the drainage pumping station is a effective measure.

在合流制排水系统中，排水泵站中设置调蓄池是解决城市初期雨水对水体污染的有效措施。

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By engineering calculating, the flow chart and the engineering capacities of the main PSB reaction tank, the secondary setting tank and the seaweed pond are obtained.

通过工程计算，设计出工艺流程图及光合细菌反应池、二沉池和海藻塘的工程容量。

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Between the forest and the building is a pond on which sits a massive 19th-century Noh stage, the setting for outdoor presentations of classical drama and music several times a year.

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