closed-type heater meaning in English

闭式加热器

The process algorithm of condenser and closed - type heater was based on the innate laws of the equipment and considered the factors during the actual operating
凝汽器和加热器的过程算法，遵从设备的物理机理，全面考虑了设备运行中的各种因素。
This paper made the process algorithm of condenser and closed - type heater which are two important equipment in power station . this paper also raised a design method of graphic modeling system
本文建立了两个重要的电厂热力设备? ?凝汽器和面式加热器的过程算法；还提出了一个图形建模系统的设计方案。