文章用系统工程的理论和方法，用系统模型和模拟的方法，分析系统内水资源的供给与需求。
Using system engineering theory and method, system model and simulation method, the paper analyses the conflict between supply and demand of water resources within the system.
并结合石化企业的具体情况，用系统工程的分析方法，深入研究节水和水资源化的方法和途径。
In combination with present situation, the way and the method about save water and reuse of wastewater were researched deeply, by means of approach of system engineering.
城市水资源开发是一项庞大的、复杂的系统工程。
The development of water resources of the cities belongs to a huge complicated system engineering.
治理水资源污染是一项涉及面很广的系统工程，要运用多种措施共同治理。
The management of water resource is a systematic engineering involving a wide range of measures.
南水北调工程水资源配置与调度是一项非常复杂的系统工程，在国内外没有现成经验可供参考。
Water resources allocation and dispatch of south-to-north water transfer is a very complicated systems engineering and there is no ready-made experience to be consulted at home and abroad.
南水北调工程水资源配置与调度是一项非常复杂的系统工程，在国内外没有现成经验可供参考。
Water resources allocation and dispatch of south-to-north water transfer is a very complicated systems engineering and there is no ready-made experience to be consulted at home and abroad.
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