核电站的安全等级高，因此其对于仪控系统的性能要求也很高。
The security grade of nuclear power station is high, so the performance demand on Instrumentation and Control System is also high.
目前国内核电站的仪控系统大多以模拟控制为主，数据显示精度和自动化程度都比较低。
Now the Instrumentation and Control System of interior nuclear power station mostly uses analog control, in which the precision of data displaying and the degree of automation are both lower.
主要介绍了计算机辅助设计与制图系统（CADD） 在土建设计、工艺设计、电气及仪控设计中使用的软件和用途。
The main emphases will be to introduce the major CADD software tools and their use in civil design, process design and EI&C design.
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