in accordance with drainage pipe network design process, the plan and edition of pipes and joints;
先后研究了排水管道、管网节点的布置与编辑;
article 3 to drain sewage into the urban drainage pipe network and its accessory facilities, a drainage entity shall apply for an urban drainage license in accordance with these measures.
第三条排水户向城市排水管网及其附属设施排放污水,应当按照本办法的规定,申请领取城市排水许可证书。
no drainage entity may drain sewage into the urban drainage pipe network and its accessory facilities if it fails to obtain an urban drainage license.
未取得城市排水许可证书,排水户不得向城市排水管网及其附属设施排放污水。
the flow in the drainage pipe network is simulated by one-dimensional unsteady flow theory, and the calculation of the pumping stations, the water gates and submersed pipes is indicated.
采用一维非恒定流方程模拟地下排水管网内的水流,并给出泵站、闸门、淹没出流管道等排水系统的处理方法。
in this paper, the theorem is proved in which the layout of urban drainage pipe network systems must be a tree structure.
本文证明了城市排水管网系统最优布局为树状结构的定理;
urban drainage pipe network is important establishment of a city.
城市排水管网是城市的重要基础设施。