全站设备的控制逻辑关系分为上下两级，下级为直接过程控制级，上级为集中监督控制级。
The control logic relation of all the station equipments can be divided into two stages. The bottom is a direct process control stage and the top is a compute supervisory control stage.
详细介绍了转炉控制系统的改进，重点阐述改进后每个环节的逻辑关系。
Have introduced the improvement of converter control system in detail, the key logic relation of every link after elaborates improvement.
这种实现方法，集中了对参数的控制，减少了耦合，有利于各参数的复用，易于逻辑关系扩展，提高了命令解析效率。
Such implementation centralizes the logical control and decreases the coupling, whereby each parameter can be reused and the system is more extensive and effective.
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