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本文根据多年从事炼油厂催化裂化装置计算机监测优化控制现场信号处理的经验，介绍了仪表的“拉表”现象解决方法和计算机输入接口获取现场信号的方法。
Based on the experience of computer monitoring and optimization of on-site signal processing in computerized catalytic cracking unit of refinery for many years, this article introduced the solution of “pull-list” phenomenon of instrument and the method of obtaining the field signal by computer input interface.