With additional time, pressure, and refrozen meltwater from above, the small firn granules become larger, interlocked crystals of blue glacial ice.
随着时间的推移，压力的增加，再加上从上方重新冻结的融水，小冰原颗粒成为相互锁结的大晶体蓝色冰川冰。
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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