Heat pump is the energy efficient environmental protection type air - conditioning system can supply heat and refrigeration.
热泵是一种既可以供热又可以制冷的高效节能环保型空调系统。
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And fully-closed radiation protection structure and compressed air wind-cooling system are designed to ensure sensors work normal for a long time in high temperature and heat radiation.
设计全封闭防辐射结构和压缩空气风冷系统，保证传感器在高温及热辐射条件下长时间正常工作。
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For promoting energy economy and environmental protection in refrigeration system, Alfa Laval has developed new version of Semi-welded plate heat exchangers by continuous R&D.