This paper analyzes the characteristics of Spacecraft Fault Diagnosis System and the basic idea and principle of Role-Based Access Control model.
文章介绍了基于角色的权限管理模型的基本思想及工作原理，并分析了航天器故障诊断系统中权限管理的特征。
Firstly, the knowledge and work principle, which is related to the Access Control System of Proximity Card, is introduced in the paper.
在本文中，首先介绍了感应卡门禁系统的相关知识及其工作原理。
Firstly, the knowledge and work principle, which is related to the Access Control System of Proximity Card, is introduced in the paper.
在本文中，首先介绍了感应卡门禁系统的相关知识及其工作原理。
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