地热水，是指高于观测深度的围岩温度的地下水。水在一定压力下开始沸腾的温度叫饱和温度。地热水埋深越大，所受静压力越高，与此对应的饱和温度也就越高。
粗糙的混凝土能把地热水围在港口旁边。
Rough concrete encases the thermal water at the side of the harbour.
在冰岛，许多大楼甚至游泳池都是由地热水供热。
In Iceland, many of the buildings and even swimming pools are heated with geothermal hot water.
在当地的一处棚舍中有一个温泉池，但地热水也汇聚到其他小溪中，可以舒适地泡浴。
There's a hot pool near one of the huts but the geothermal water also feeds into nearby streams for more temperate bathing.
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