Pipe Network Drainage System 管网状排泄系统
Firstly,investigation had been done on the drainage network system's structure and system function.
首先,研究了城市排水管网信息管理系统的框架、结构和系统应具备的功能。
参考来源 - 排水管网水力模型与地理信息系统（GIS）集成技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The existing public network for waste water drainage is along south side of the plot and the system is pressurized.
现有的公共污水管网沿着地块的南面，这部分系统是压力系统。
Read blueprints, drawings and specifications to determine layout of plumbing system, water supply network and waste and drainage systems.
解读蓝图，图纸和说明书用来配置管道系统，给水网，污水排水系统。
The water quality evolvement process in Yangtze River drainage area is believed as a complex network system, with having lots of nodes and correlating to the downflow.
长江流域水质演变过程可看成是一个具有多节点，向下流关联的复杂网络系统。
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