a vertical wedge-shaped mass of ice in the soil of a permafrost region; (also) a crack or fissure in the earth resulting from the formation of…
| 单词 | θ3421 |
| 释义 | the world > the earth > water > ice > land ice > [noun] > mass of ice in permafrost region (2) ice wedge1865 a vertical wedge-shaped mass of ice in the soil of a permafrost region; (also) a crack or fissure in the earth resulting from the formation of… hydrolaccolith1955 an underground mass of ice in a region of permafrost which tends to increase in size and thrust up the overlying soil forming a mound; a mound so… |
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