本文提出了一种专家数据库系统中知识库的设计方法。
An approach to design knowledge base in the expert system is presented.
根据设计计算的要求，搜集现有抽油机生产厂家生产的抽油机尺寸数据，建立了一套行之有效的游梁式抽油机专家数据库系统。
According to the requirements of design and calculation, a feasible expert database of beam pumping units is established by collecting the dimension data of the existing pumping units.
数据库系统是农业专家系统的重要数据资源。
The database system is important data resource in agricultural expert system.
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