从系统工程学的角度出发，将广泛应用于系统安全研究中的事故树分析方法应用到城市轨道交通事故分析中。
From the perspective of systems engineering, Fault Tree analysis method which is widely used in system security study is used for analysis of urban rail transit accident.
座舱布局的工效学设计是保证载人航天器系统安全可靠性和充分发挥航天员工作效率的重要技术途径。
The ergonomic layout design of cockpit in manned spacecraft is an important technical job to ensure its reliability and safety and to make full use of cosmonauts.
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