中文摘要：

对活动长度和中间品储存能力有限制的化工生产计划问题进行研究，利用状态-任务-网络概念和层级模型方法，提出了修正的生产计划模型。该模型基于混合整数线性规划模型，以供应网络内总生产成本和物流成本最小化作为目标函数，并应用标准优化软件求解。用一个算例说明了所构建模型的有效性。

英文摘要：

A mixed-integer linear programming （MILP） model of chemical industry production plan with limited campaign length and finite intermediate storage was developed, which was based on the state-task-network （STN） concept and the hierarchical modeling approach employed. Minimizing total production and logistic costs within the supply network was considered as the objective function. This modified model can be solved using standard optimization software. An example problem is given to show the effectiveness of the proposed model.