您的景观设计师将计算斜坡，并检查您的具体情况土壤类型的大小和计划径流和排水控制。
Your landscape designer will calculate slopes and check soil types to size and plan runoff and drainage control for your situation.
这种现象并不仅仅出现在纽约，在美国有将近800个城市依靠破旧的排水系统，使用同一个管道来收集暴雨径流水，工业废水和人用污水。
And New York is not alone. Nearly 800 American cities rely on decrepit systems that collect storm-water run-off, industrial waste and human sewage in the same pipes.
处理雨水径流和洒水排水的技术类似，但您的景观设计师应该考虑到最坏的情况。
The techniques for handling rain runoff and sprinkler drainage are similar, although your landscape designer should take into account the worst-case scenario.
干扰的基岩排水和径流的变化模式，这可能增加侵蚀率。挖沟是勘探活动，大部分干扰的基石。
Disturbance of the bedrock changes drainage and runoff patterns, which may increase the rate of erosion. Trenching is the exploration activity that most disturbs bedrock.
城市降水径流污染中的污染物主要来自降水、城市地表和排水系统。
The urban rainfall runoff pollution originates from the precipitation, the urban surface and the drainage system.
大型系统通常包括旁路通道，绿化带和道路，用来处理超过小型排水系统处理能力的径流。
Major systems commonly include bypass tunnels, greenbelts, and roads which are used to handle the runoff which exceeds the capacity of the minor drainage system.
城市快速路排水设计，一般只考虑路面径流的做法，主要从道路表面、路面结构内部和路基(包括绿化带)三方面时排水进行综合介绍。
The drainage design of urban highway deals with only the surface run-off. It presents a new drainage system considering the road surface, pavement structure, and subgrade (including green belt).
对西安市南二环路雨天路面径流排水进行了连续取样监测，表明城市道路路面径流污染物SS和COD具有很高的污染强度，且生物可降解性较差。
Storm water samples collected from an urban road in Xi′an City show that the urban road surface runoff has much greater pollution intensity of SS and COD and possess less biodegradability.
屋顶雨水径流的地区可能需要排水渠或砾石坑保护植物和结构。
Roof rain runoff areas may require a drain or gravel sump to protect plants and structures.
径流液中各形态氮、磷浓度远高于渗漏液，而两种流失方式下排水量差异不显著，故地表径流是该条件下氮素和磷素流失的主要方式。
The concentrations of nitrogen and phosphorus in runoff water is higher than that in infiltrated water. Surface runoff is the main way of nitrogen and phosphorus losses under the condition.
径流液中各形态氮、磷浓度远高于渗漏液，而两种流失方式下排水量差异不显著，故地表径流是该条件下氮素和磷素流失的主要方式。
The concentrations of nitrogen and phosphorus in runoff water is higher than that in infiltrated water. Surface runoff is the main way of nitrogen and phosphorus losses under the condition.
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