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。
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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