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1·So studying reliability of rainwater pipe network and adopting probability limit state design method based on reliability theory to design rainwater pipe network have important actual meanings.

因此，研究雨水管网的可靠性，采取基于可靠性理论的概率极限状态设计法来设计雨水管网有着重要的实际意义。

2·Let the rainwater run through this pipe.

让雨水从这个管道中流过去。

3·All the rainwater on the roof runs into the pipe.

屋顶上的雨水都流入管道中。

4·Rainwater is channeled from the roof through a harvesting pipe installed in the school lobby, where it is collected and recycled.

屋顶的雨水被安装在学校大堂内的收集管收集起来并被回收利用。

5·It Analyses the merit and disadvantage of four rainwater infiltration technologies including infiltration ground, infiltration pipe and channel, filter pool and filter basin.

分析了补充水体的渗透地面、渗透管渠、渗透井和渗透池四种雨水渗透技术的优缺点。

6·When there was a rainstorm, the current drainage pipe could not discharge all the rainwater and spilled the water over through the manholes.

暴雨时，由于雨水排放管太细，雨水来不及排放所以从检修口倒灌回仓库。

7·A rainwater discharging pipe, a distributing pipe and a water quality sensor are arranged inside the safety distributing well;

安全分流井内设有雨水排水管、分流管和水质传感器；

8·The results indicate that the perforated pavement and perforated rainwater drainage pipe system reduce run off and replenish underground water remarkably.

试验结果表明，采用透水铺盖面及渗透式雨水管道系统，对削减径流、补充地下水源有显著效果。