因为它是与环境隔绝的，因此没有热量交换。
水在水泵地压力下，留过热交换机，并把从夏天开始就一直储藏在这里的热量带走。
Water is pumped through the heat exchangers to pick up the heat stored during summer.
没有它，热量就无法进行有效的交换。
Without it, the heat will not be able to effectively exchange.
没有它，热量就无法进行有效的交换。
Without it, the heat will not be able to effectively exchange.
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