When it emerged towards the end of the 1980s as a purely text-based medium, it was seen as a tool to pursue knowledge, not pleasure.
20世纪80年代末，当它作为一种纯文本媒介出现时，它被视为一种追求知识而非快乐的工具。
The knowledge representation method of blackboard framework has been applied to the Blackboard Framework Based Expert System Tool (BFBEST) and the results are satisfactory.
黑板框架的知识表达方法，已在医学专家系统开发工具BFBEST中获得了成功的应用，并取得满意的效果。
In this system, tool means is adopted, mixed technological decision based on example and knowledge is constructed, sequence Graph is obtained by model reconfiguration and feature assembling.
系统融合了工具化思想，构造了具有新意的基于实例与知识的混合式工艺决策策略并采用模型重构法和特征拼装技术生成工序图。
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