I made my first system role play twenty seven years ago.

我在27年前完成了第一次系统角色扮演。

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This paper chooses and realizes the privilege system role-based based on the further research between discretionary access control, mandatory access control and role-based access control.

论文在对自主访问控制、强制访问控制和基于角色的访问控制的访问控制策略及机制分析、研究基础上，选择并实现了基于角色的权限管理系统。

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In the view of software engineering, a fundamental thought of system role analysis, analysis and selection of design tools, software system that related to the system modeling were raised.

从软件工程的角度，对涉及该系统建模的系统角色分析、分析与设计工具选择、软件体系结构特征等提出基础性设想。

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The respiratory system plays an important role in maintaining our internal environment at the proper level of oxygen, by bringing the right amount in.

呼吸系统的重要性在于,通过向体内输入适量的氧气,维持人体内环境中的氧平衡

耶鲁公开课 - 生物医学工程探索课程节选

D. scientists and engineers into the workforce, many of whom have received little or no instruction regarding the nature of the IP system and their role in it.

FORBES: Intellectual Property Awareness At Universities: Why Ignorance Is Not Bliss

What's different about this one is it seems to me that the financial system has taken such a huge role in our society, the faults of that system are creeping over in part of the real economy, you know, the manufacturing sector, the consumer sector.

NPR: Bogle: Financial System's Woes Hit 'Real' Economy

The need for a system administrator whose only role is lower-level functions is no longer there.

FORBES: Does IT Still Matter?