With further melting, refreezing, and increased weight from newer snowfall above, the snow reaches a granular recrystallized stage intermediate between flakes and ice known as firn.
随着进一步的融化、再结冰，以及上方新的降雪增加的重量，这些雪变成再次结晶阶段的颗粒状中间物，介于小薄片与冰块之间，被称作万年雪。
Snowfall amounts in Antarctica have not increased for the past 50 years, according to a new study.
根据一份新的研究，南极洲的降雪量在过去50年内并没有增加。
Snowfall amounts in Antarctica have not increased for the past 50 years, according to a new study.
根据一份新的研究，南极洲的降雪量在过去50年内并没有增加。
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