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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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.
为促进制冷系统的节能环保，通过不断的研发改进，阿法拉伐公司研制出的新一代半焊式板式换热器。
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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.