System engineering is the methodology of optimal programming, designing and operating of a system.

系统工程是对系统进行最优规划、设计、运行的方法。

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Theories and methods of system engineering are adopted in this paper to study the problem of optimal programming of regional water conservation and find out an optimal programming scheme.

本文运用系统工程的理论和方法，研究区域节水最优规划问题，以寻求区域最佳节水规划方案。

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Theories and methods of system engineering are adopted in this paper to study the problem of optimal programming of regional water conservation and find out an optimal programming scheme.

本文运用系统工程的理论和方法，研究区域节水最优规划问题，以寻求区域最佳节水规划方案。

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