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水－水热泵机组是高效、节能的新型产品。它适用于一年四季要求降温并且同时获得生活用水和取暖用热水的各种场合，可提高机组的利用率。
Water - water heat pump unit is efficient, energy-saving new products. It is suitable for a variety of occasions requiring cooling throughout the year and at the same time domestic water and warm water for heating to increase unit utilization.