Ice shelves take thousands of years to form.

冰架的形成需要数千年的时间。

Thwaites " looks different from other ice shelves, " Wahlin said.

瓦林说，斯韦茨冰川" 看起来与其他冰架不同" 。

The edges of an ice sheet are known as ice shelves.

冰盖的边缘叫做冰架。

It broke free from one of the most closely observed ice shelves.

冰块从一个看起来极为紧密的冰架上挣脱了出来。

Ice shelves surrounding the continent hold back ice like the Hoover Dam.

这些大陆边缘的冰保护着内部的冰，就像胡佛大坝那样。

The breakaway piece made up 40% of the ice shelf's surface area.

破裂的冰架占冰架表面积的40%。

An ice shelf is a large floating sheet of ice permanently attached to a landmass.

冰架是永久附着在陆地上的一块巨大的漂浮冰层。

But the more lakes there are, the more unstable they make the continent's ice shelf.

但融水湖数量越多，就会使得南极洲大陆的冰架越不稳固。

Researchers used computer simulations to calculate future melting of protective ice shelves jutting over the Amundsen Sea.

研究人员使用计算机模拟来计算阿蒙森海上方突出来的保护性冰架未来的融化情况。

This and collapsing ice shelves are just some of the problems Antarctica is facing due to climate change.

这和冰架坍塌只是南极洲因气候变化而面临的部分问题。

The Milne ice shelf, the last one that was intact in the Canadian Arctic, split apart during a heatwave.

米尔恩冰架是加拿大北极地区最后一个完整的冰架，这块冰架在热浪中断裂。

Unlike the sea ice in the Arctic, the ice shelves surrounding the Antarctic continent are solid, impenetrable and near-permanent.

与北极的海冰不同，南极大陆周围的冰架是坚固的、不可穿透的、近乎永久的。

Iceberg A68 has been floating north since it broke off from the Larsen C ice shelf in July 2017.

A68号冰山自2017年7月从拉森C冰架脱落后一直向北漂浮。

From Canada: The last fully intact ice shelf in Canada collapsed into the Arctic Ocean this summer.

今年夏天，加拿大最后一块完全完好无缺的冰架坍塌，进入北冰洋。

A major study into Antarctica's thinning ice shelves has found that they've shrunk significantly over the past 25 years.

一项对南极洲变薄冰架的主要研究发现 在过去的25年里 冰架显著缩小。

Ice shelves are the floating edges of the ice sheet – the ice cover - that extend over ocean waters.

冰架是冰原漂浮在水上的边缘，是延伸在海水表面上的冰盖。

The study is the first complete look at all of the continent's ice shelves.

这是首个对这片大陆全部冰架进行调查的研究。

It includes the very large Thwaites ice shelf that is melting so fast it is called " the Doomsday Glacier."

它包括非常大的思韦茨冰架，它融化得如此之快，被称为“末日冰川”。

Taken together, the two processes have reduced the mass of Antarctica's ice shelves by 12 trillion metric tons since 1997.

自1997年以来，这两个过程加在一起已经使南极洲冰架的质量减少了12万亿吨。

It flows out into the ocean and forms an ice shelf.

它流入海洋并形成冰架。