在此提出了离散投入产出优化模型，给出求解该模型的方法和状态反馈形式的最优控制解。
An optimum model of discrete input-output is established in this paper. The method of solving the model and the optimal controls of state feedback are given.
本文研究多年延滞非线性动态投入产出模型的递阶优化问题。
In this paper the hierarchical optimization of a nonlinear dynamical input-output model with time delays is studied.
基于改进的经济、环境、资源、污染治理投入产出模型，建立了区域水环境经济多目标优化规划模型。
Based upon the improved Input Output model of environment economy resources pollution control, the regional multiple objective optimization model of water environment economy is established.
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