凝汽机组各加热器运行状念在线分析系统开发的主要工作包括：（1）编写与DCS系统的数据接口程序；
The work of on-line analysis system of the operation state of each heater in steam unit include: (1) compile data collection procedure with DCS system;
论述了冷水机组的工作机理，并着重介绍可编程序控制器在冷水机组实际使用中的程序设计思想。
It introduces the operation principle and program design of PC (programmable controllers) used on the water cooling unit.
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