冷却系统的主要部件是一部3轮空气循环机，是可以进行加热和制冷工作的自维持系统。
The main part of the cooling system is a 3-wheel air-cycle machine which works as a self-controlled system for heating and cooling.
以推钢式连续加热炉为对象，建立了炉底纵水管自然循环汽化冷却系统的流动及传热数学模型，并根据该模型计算出汽包压力对系统工作指标的影响。
The fluid and heat transfer math model in a steam cooling system with natural cycle has been built up on the pusher reheating furnace.
笔者以本厂的醇酸树脂生产为例，介绍了热媒加热循环系统和冷媒冷却系统。
A typical heat medium heating system and cold medium cooling system were given.
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