铝材料的引进改变了传统铜管热交换器在重量和体积等方面的不足，使换热器的换热效率得到急剧提高。
Introduction of Aluminum material replaced the traditional heavy and spacious copper and makes the current heat exchanger more efficient.
铝材料的引进改变了传统铜管热交换器在重量和体积等方面的不足，使换热器的换热效率得到急剧提高。
Introduction of Aluminum material replaced the traditional heavy and spacious copper and makes the current heat exchanger more efficient.
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