The operational circle and hierarchy structure of city water management information system (CWMIS) are analyzed herein and CWMIS is divided into several subsystems.
本文分析了城市水管理信息系统(CWMIS)的运行回路和层次结构，并将管理对象分解成若干子系统。
The result of research shows the waste water after treatment can be completely used as replenish water for water circle system.
研究结果表明：处理后的废水完全可作为循环水系统补充水用。
Agricultural Comprehensive water saving technology system should be adopted for the well-irrigated area and the basic balance remained for extraction and recharge during one hydrological circle.
井灌区应采取农业综合节水技术体系，保持在一个水文周期内地下水采补基本平衡。
New concept of "Semi-centralized Treatment System", which can realize water, nutrition and energy circle through separate water supply and separate discharge system was presented in this paper.
针对这一状况提出了“半集中式处理系统”概念，通过分质供排水系统及污水、垃圾的综合考虑和处理可以实现水、营养物质和能源的循环。
May circle the system in the vacuum tubular resistance furnace body installment by the multi-layered copper pipe the horizontal field winding, must let water through cooling.
可在真空管式电阻炉体安装由多层铜管绕制的横磁线圈，需通水冷却。
Circle water flow system and high hydraulic gradient are applied. The experiment is carried out and the behavior of non-Darcy water flow with high velocity is studied.
试验研究宽裂隙高水力梯度下的非达西渗流运动规律，建立流速与水力梯度的非线性关系曲线。
Circle water flow system and high hydraulic gradient are applied. The experiment is carried out and the behavior of non-Darcy water flow with high velocity is studied.
试验研究宽裂隙高水力梯度下的非达西渗流运动规律，建立流速与水力梯度的非线性关系曲线。
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