本建议提供了一套基于网络的自动水平控制装置的通用应用指导。
This Recommendation provides a set of general application guidelines for network based Automatic Level Control Devices.
以PLC为核心的催化剂自动加料控制系统，可以提高催化裂化装置的自动控制水平。
The PLC is the core of the catalyst automatic feed control system. It can improve the FCCU automation control level.
同时也对装置工程设计中的自动控制水平、环保与安全问题以及该装置建设的可行性进行了经济分析。
In addition, we also investigate the design of the equipments, the protecting of environment, safety issue and economic evaluating in magnifying the project.
简要述说了催化剂喷雾干燥系统的工艺流程，装置改造前后对比情况，自动控制水平，以及改造后的效果。
The process of catalyst spraying dryer system are simply introduced in the paper, the comparison results, control level and effects are described as well.
简要述说了催化剂喷雾干燥系统的工艺流程，装置改造前后对比情况，自动控制水平，以及改造后的效果。
The process of catalyst spraying dryer system are simply introduced in the paper, the comparison results, control level and effects are described as well.
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