The ice sheet was assumed to have been stable.
冰盖被默认为是稳定的。
It would take the melting of an ice sheet to do that.
但是，一个大冰原的融化就不同了。
This gives us an idea of how fast a large ice sheet can melt.
这告诉了我们冰原会以多快的速度融化。
But the Greenland ice sheet is not one solid, smooth mass of ice.
但是，格陵兰冰盖不是一个牢固光滑的冰体。
The interaction between ice sheet and sloping structure is studied.
研究了冰排与斜面结构的相互作用过程。
There are about 98% thick continental ice sheet and 2% barren rock.
南极约98%覆盖着厚厚的大陆冰床，2%光秃的岩石。
The satellite USES radar to measure its altitude above the ice sheet.
卫星用雷达测定卫星从冰层顶部算起的高度。
Greenland's massive ice sheet holds about 20 percent of the world's ice.
格陵兰巨大冰盖的冰量大约占世界的20%。
The Antarctic Ice Sheet waxed and waned, and global sea level rose and fell.
随着南极冰盖冰冻和消融，全球海平面也在降低和升高。
It is not simply that the ice sheet is melting steadily as global temperatures rise.
这并不仅仅是说随着全球气温升高，冰盖在稳步融化。
The only uncertainty is the time it would take for complete ice sheet disintegration.
唯一不确定的是要多久完整的冰层才会分崩离析。
Several metres of sea level rise is now inevitable as the Greenland ice sheet disappears.
现在，随着格陵兰冰原的消失，海平面上升几米已是不可避免。
The road was covered with a sheet of ice.
路面结了一层冰。
The lake was covered with a sheet of ice.
湖面上覆盖着一层冰。
Again and again, though, the main ice age sheet recovered and the cold continued.
如此反复的，冰河时代恢复然后，寒冷继续。
Be careful, the pavement's like a sheet of ice.
当心，人行道路面就像一大片冰。
Be careful, the pavement's like a sheet of ice.
当心，人行道路面就像一大片冰。
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