单位时间内排水的体积。
由于城市排水计算排水流量与圩区排涝计算排涝流量在概念、方法上不尽相同。
The concepts and methods of the urban development departments and water conservancy departments used to reckon the drainage discharge are not completely in the same.
城市雨水流量是城市雨水排除管道设计的基础和依据，其标准按《室外排水设计规范》（GBJ14-87）执行；
The city rain flux is the design foundation of city rain drainage pipeline, the standard according to outdoors drainage criterion (GBJ14-87).
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