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【中文摘要】 本文回顾了二十多年来多联式空调(热泵)机组的应用情况,充分肯定了其系统简单、使用灵活、季节能效比高等优点,同时也指出了多联式空调(热泵)机组所存在的一些问题及其发展趋势,提出了目前推广应用多联式空调(热泵)机组应注意的问题。 【英文摘要】 The application of multi-connected air-conditioning(heat pump)unit in recent 20 years has been reviewed.Its advantages include simple in construction,flexible in operation and high SEER.The problem and developing trend of multi-connected air-conditioning(heat pump)unit have been indicated,and some suggestions have also been raised for its generalized application. 【中文关键词】 多联式空调(热泵)机组; VRV变频多联机组; 数码涡旋压缩机 【英文关键词】 multi-connected air-conditioning(heat pump)unit; VRV inverter multi-connected unit; digit scroll compressor