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中文摘要：
在数字化核电厂事故工况下，主控室操纵员往往需要在短时间内处理大量信息并快速做出反应和决策，而持续的时间压力产生的心理负荷可能影响诊断与监控的作业绩效，进而影响整个核电厂系统的功能和安全。文中主要探讨在核电厂数字化SOP（StateOrientedPro．cedures，状态导向事故规程）的环境下，时间压力对主控室操纵员心理负荷和作业绩效的影响。通过电厂实地研究、操纵员访谈、仿真实验等方法，发现在持续的时间压力下，主控室操纵员的平均执行时间减少、心理负荷升高，时间压力对操纵员的心理负荷与作业绩效均有显著影响。
英文摘要：
In the digital nuclear power plant accident conditions, main control room operators often need to process large amount of information and react quickly and make decisions in a short time. However, long lasting time pressure may produce high mental workload and may further impact the operation performance of diagnosis and monitoring. The performance will affect the functioning and safety of the entire system of a nuclear power plant. The purpose of this article is to discuss effect of time pressure on the main control room operators to manipulate mental workload and operation performance on the nuclear power plant SOP （State Oriented Procedures） and digital human machine interface systems. Through site visits in nuclear power plants, the operators＇ interview, related simulation experiments and other methods, we found that the reduction of average execution time of the main control room operators, and the increase of mental load. Time pressure has a significant impact on the operator＇ s mental load and performance.
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