Base on the norm analysis of seismic signals and the structural system, the mixed optimal control index J is cited; and its physical implication is defined.

在地震信号和建筑结构系统的范数分析基础上，使用了混合控制优化指标J作为优化目标，并给出其物理含义。

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The correspond to oil field experience expert system knowledge base and expression have been established, positive and negative mixed inference control strategies have been designed in this system.

根据系统改造设计中所需的领域知识，建立了相应的专家系统知识库及表达形式，设计出正反混合推理的控制策略。

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