A dam or embankment is built to keep in the water, which freezes at night and remains frozen in the absence of direct sunlight.
现在已修筑了一道大坝或大堤用以蓄水，水在夜晚会结成冰，在没有阳光直射的情况下也会继续呈冰状。
Slovakian boys ride through the frozen Liptovska Mara dam as the sun sets near the central town of Liptovsky Mikulas, on March 22.
3月22日，当太阳落山时，斯洛伐克男孩骑车穿过靠近利普托夫斯基·米库拉什中心城市的冰冷的利普托夫斯卡·马拉水库大坝。
The aging of concrete dam located on the regions with cold climate is characterized by resorption, destroyed by freeze-thaw and frozen-heave, scouring and etc. , but the carbonized depth is low.
寒冷地区混凝土坝老化主要表现在溶蚀、冻融和冻胀破坏、冲刷破坏等，其碳化深度不大。
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