The American Water Works Association and the Water Pollution Control Federation have become collaborators in its preparation. 美国水工程协会和水污染控制联合会在其准备中已协同工作。
In the long term, Beijing should establish a catchment works will trickle into the urban and suburban reservoir lakes, urban development can be used for rainwater into the water. 从长远看,北京要建立汇水工程,将涓涓细流汇入城市河湖和郊区水库,使雨水变为城市发展可利用的水资源。