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长距离输水泵站机组选型合理与否，对泵站工程投资和年耗电费影响较大。本文以年费用最小法建立了长距离输水泵站机组选型的数学模型和管道优化设计的线性规划模型，并附有算例和解法。
The long-distance water pumping station unit type selection is reasonable or not, and has a great influence on the pump station project investment and the annual power consumption fee. In this paper, the annual cost minimization method is used to establish the mathematical model of the long distance pumping station type selection and the linear programming model of the pipeline optimization design, together with the calculation examples and solutions.