ice sheets

Greenland and Antarctica hold the Earth's last remaining ice sheets.

格陵兰岛和南极洲有着地球上现存的最后冰原。

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Ice sheets are heavy, and when not supported, they crack off.

冰川十分厚重，而且当失去支撑时，它们就会破裂。

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Fewer than 460000 years ago, meltwater from retreating ice sheets topped the land bridge and carved out the channel.

不到46万年前，日渐消融的冰川融化后的积水覆盖了大陆桥，形成了英吉利海峡。

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Lake Crescent was created by the gouging of retreating ice sheets.

月牙湖是由冰床风蚀演化而成.

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This includes mountain glaciers, ice sheets covering West Antarctica and Greenland, and Arctic sea ice.

这包括山岳冰川、覆盖南极洲西部和格陵兰的冰原以及北冰洋的海冰。

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Displacement response analysis of Songhua River highway bridge under action of moving ice sheets

流冰作用下松花江公路大桥位移响应分析

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Under this pressure, they say, the ice sheets could break up physically.

在这种压力下, 他们认为冰盖肯定会被打破.

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For years, scientists have studied the impact of the planet's warming on the Greenland and Antarctic ice sheets.

科学家们多年来一直研究全球变暖对格陵兰和南极冰盖的影响。

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Ice sheets the world over are melting back and that's particularly true in the Arctic.

全世界的冰川都在消融，北极圈尤其如此。

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As the ice sheets withdrew, large chunks of ice broke off and were left behind.

随着冰盖的消退，一部分大冰块从整体上脱落下来，就这样遗留在地面上。

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Much of the northern lands were covered by vast ice sheets that reached a thickness of as much as 3 kilometers.

北方大陆的大部分地区曾为厚达3公里的大量冰层所覆盖。

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Large, flat sheets of the icecap called ice shelves float in water near Antarctica.

大而扁平状的冰冠称作冰架,它们漂浮在南极洲周边的水域中.

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Polar bears roam the Arctic ice sheets and swim in that region's coastal waters.

可爱的白熊在北极一望无际的冰面上漫步,在临近海岸的海水中游弋.

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Why are the ice sheets descending into the oceans on Antarctica melting?

为什么南极的冰川融化，沉入海洋？

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The great ice sheets that covered New England had departed.

此前覆盖新英格兰的大冰盖刚刚消退。

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The ice sheets that cover Greenland and Antarctica now are remnants of this and previous ages.

现在覆盖着格陵兰和南极的冰盖就是上述冰块和以前几次冰期的遗留物.

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Huge ice sheets were formed.

巨大的冰层形成了。

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That's a problem: It couldn't have warmed Earth enough to keep the seas from becoming permanent ice sheets.

这样存在一个问题：太阳为地球提供了热量，但不足以使海洋避免结成永久的冰盖。

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The cod swim away; the ice sheets freeze over again.

鳕鱼游走了, 冰原再度冰封起.

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The ice sheets that cover Greenland and Antarctica now are remnants of this and previous ice ages.

现在覆盖着格陵兰和南极的冰盖就是上述冰块和以前几次冰期的遗留物。

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But the big worry is that their loss will allow ice sheets on land to move faster, adding extra water to the seas.

但是一个大的担忧是失去冰架将让在陆地上的冰盖移动的速度更快，给海洋带入更多的水。

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These are similar in size to the ice sheets that covered much of North America during the Ice Age.

其大小类似于冰河时代覆盖于北美洲大部分的冰块。

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This would start the formation of ice sheets such as those that several times have flowed south across North America and Eurasia.

这样就会开始形成像那些曾几度往南流过北美和欧亚大陆的冰层。

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Niagara Falls formed about twelve thousand years ago when huge melting sheets of ice formed the Great Lakes.

尼加拉瓜瀑布形成于一万两千年以前，与此同时，融化的巨大冰川形成了北美洲五大湖。

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Although major melting is not imminent, the continuous changes of ice sheets impact on the processes of global climate change and greenhouse effect.

尽管较大范围的融化不会马上来临，但是冰盖的持续变化影响着全球气候变化的进程和全球的温室效应。

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The authors warn that this rise in sea levels does not take into account melting ice sheets and glaciers& factors that could double the increase.

学者们警告说，这还不包括冰层和冰川的融化，如果考虑这些因素，海平面还将升高一倍。

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The ice sheets scoured the landscape down to bedrock.

冰盖的消退抹去了基岩以上的所有东西。

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Impacts of the formation and ablation of Antarctic ice sheets on the global geoid and sea-level changes

南极冰盖的形成与消融对全球大地水准面与海面的影响

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Still undetermined, Hu says, is exactly where and how the warming waters interact with the ice sheets.

胡爱学说：温暖的水域到底在哪里与冰盖交汇，又是如何交汇的，这些情况尚不确定。

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Ice sheets are broad glaciers that blanket whole regions.

冰盖则是能把整个地区覆盖起来的广阔冰川.

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