The designed flood peak flow in storm sewer is usually calculated by adopting a constant average runoff coefficient at present in China, simple as it is, it's not reasonable enough.
目前，我国采用单一地表的平均径流系数计算雨水管渠的设计洪峰流量，这虽然使计算简化，但不尽合理。
The designed flood peak flow in storm sewer is usually calculated by adopting a constant average runoff coefficient at present in China, simple as it is, it's not reasonable enough.
目前，我国采用单一地表的平均径流系数计算雨水管渠的设计洪峰流量，这虽然使计算简化，但不尽合理。
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