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astronomical
>
stalactite of snow accumulate
冰凌堆积
——春季淌凌时河道断面被冰凌局部阻塞。
冰凌堆积
严重,往往形成冰坝,对河堤及航运有相当危害。并且一但冰坝被水流冲垮,就极有可能产生洪水。