第四章阐述了灰色关联分析法的基本原理及其在泵站改造方案优化决策中的应用。
Chapter 4 describes the grey relational analysis theory and application in project decision-making.
东江泵站结合扬程变化幅度大的特点，在技术改造中采用双速全调节叶片的大型轴流泵机组型式，取得了明显的节能效益。
In the technology reform of Dongjiang Pumping Station, a large scale axial -flow pump with double speed is used to fitting in with the nature of the pump head varying greatly.
在水轮泵站技术改造方案的比较中，本文采用模糊优选理论。
In the comparison of the technique reform projects for water-turbine pump stations, the thesis USES the fuzzy optimum selecting theory.
因此，实施泵站节能措施，对泵站进行更新改造，此举势在必行。
Therefore, it is necessary to carry out the measures of saving energy of pump station, to reform the pump station.
为了达到良好的改造效果和充分利用改造资金，在改造前，应对泵站进行老化评估。
In order to achieve better effects and make full use of the transformation funds, aging evaluation of pumping station should be carried out before transformation.
对改造后泵站进行了现场测试，结果表明运行情况良好。
Field test performed on pumping stations after reformation shows that the pumping stations are in good operation condition.
采用改进的整数规划法对某中小城镇给水泵站的水泵进行优选和改造，实践证明，改造后降低了泵站的能耗，节约了运行费。
A project of optimizing and improving water pump capacity was conducted by using improved integer programming in water supply pump stations in a small or medium size town.
为了满足液压泵站复杂灵活的控制要求，采用PLC改造了液压泵站原来的继电器控制系统。
In order to meet the requirement of the complicated and flexible control of hydraulic power unit, its electrical control system is rebuilt by PLC.
为了使泵站在安全高效状态下运行，结合我国的实际国情，需要对泵站进行更新改造。
Combined with China's actual situation, pumping station renovation should be carried out so that pump runs in a safe and efficient state.
由此可见，在大型泵站更新改造过程中，其改造的策略和技术就显得尤为重要。
It is suggested that improvement strategy and technique is a very important part in the technique improvement of large scale pumping station.
由此可见，在大型泵站更新改造过程中，其改造的策略和技术就显得尤为重要。
It is suggested that improvement strategy and technique is a very important part in the technique improvement of large scale pumping station.
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