它显示了其在永久冰冻区之上的表面由于多次冰冻和融化已经成为多边形的冰板。
They show a surface broken into polygonal slabs by repeated freezing and thawing of the sort that happens above permafrost.
去年2月，有164平方哩的一大块冰层断裂漂走了，接着在去年5月，另一块62平方哩的冰板也倒下了。
In February last year a 164 - square-mile chunk broke off. Then in May another slab of ice, this time measuring 62 square miles, fell away.
作用于斜坡结构物上的海冰荷载包括两部分：使冰板发生弯曲破坏的分力和使破裂冰块沿斜面上爬的分力。
The sea ice force acted on an inclined structure consists of two parts:pices of the force making an ice plate bend and that of broken the ice climb up along the inclined surface.
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