melting and refreezing的意思|示意

In the large image, the area behind the shoreline is pockmarked by marshes, ponds, and hummocks characteristic of "thermokarst," landscapes created by the melting and refreezing of permafrost.

在大图中，海岸线后面的区域由湿地、池塘、热融冰丘形成了凹陷，融化的以及重新冻结的冻土层形成了这种景观。

In 2000 he extracted deep cylinders of ice from Kilimanjaro's glaciers and found that the higher layers were full of elongated bubbles - signs that melting and refreezing had occurred in recent years.

2000年，他曾用柱体容器从乞力马扎罗山的冰川层深部提取了部分冰块，发现冰块上层充满了细长的气泡，证明在最近那几年冰层曾今融化并重新冻结。

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。