hierarchy network system model 分层网络系统模型
In order to solve problems of reuse difficulty and low management efficiency of resource base system, a resource-base system model was proposed based on hierarchy semantics network.
为了解决资源库系统内容重用难及管理效率低的问题，采用分层语义网络结构提出了一种提高资源关联性及利用率的资源库系统模型。
An overall analysis of factors influencing the safety system of metro running tunnel was carried out; a Hierarchy structure Model is set up.
较全面分析了影响地铁区间隧道安全体系的各个因素，建立了层次结构模型。
In this paper, the concepts, structure and characteristics of expert systems are summarized, which provides for employing expert system model as the hierarchy of CAPP system.
本文总结了专家系统的概念、结构、特点，为采用专家系统模型作为CAPP系统的体系结构提供了理论基础。
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