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。
Firn: granular partially consolidated snow that has passed through one summer melt season but is not yet glacial ice.
粒雪，万年雪：经过一个夏季的溶化期但仍未成冰川的粒状且部分沉固的雪。
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