地质学家认为，这个具有流体化喷出物的陨石坑表明，在地表下几米深处有一层永久冻土层或水冰。
Geologists think that this fluidized ejecta crater indicates that a layer of permafrost, or water ice, lies just a few meters under the surface.
答案可能是，现在火星上几乎所有的水都被锁在地表下的永久冻土层中，更多的水被包含在这个星球的极地冰帽中。
The answer may be that virtually all the water on Mars is now locked in the permafrost layer under the surface, with more contained in the planet's polar caps.
海滩上，有一个不规则的正在融化的永久冻土层。
“气候引爆点”的一个例子就是永久冻土层的融化。
An example of a tipping point is the thawing of the permafrost.
一个腐烂的永久冻土层将释放出多少甲烷和二氧化碳？
How much methane and carbon dioxide might be released from the rotting permafrost?
一个腐烂的永久冻土层，将释放出多少甲烷和二氧化碳？
How much methane and carbon dioxide might be released from the rotting permafrost?
永久冻土层经过千万年的累积形成，其中包含了巨量的冻僵的有机物。
The permafrost contains immense amounts of frozen organic matter that have been accumulating for millennia.
永久冻土层经过千万年的累积形成，其中包含了巨量的冻僵的有机物。
The permafrost contains immense amounts of frozen anic matter that have been accumulating for millennia.
俄罗斯科学家将三万多年前松鼠埋藏在永久冻土层中的果实培育成活。
Scientists in Russia have grown plants from fruit stored away in permafrost by squirrels over 30,000 years ago.
因为这里是永久冻土层，没有泉流和水井。当地人只得锯开冰冻小河来获得饮用水。
Because of the permafrost there are no any springs and Wells here, so the locals have to saw the "drinking water" out of small rivers.
暖极代表海平面上升和在北极永久冻土层解冻，会引起更多的沼气和碳排放量释放到大气层。
A warmer pole means higher sea levels and a thaw in the arctic permafrost would lead to even more methane and carbon dioxide being released into the atmosphere.
科学家表示，虽然山体滑坡会自然发生，但明确无误的证据表明，亚马尔古老的永久冻土层正在融化。
While landslides can occur naturally, scientists say there is unmistakable evidence that Yamal's ancient permafrost is melting.
柳芭仅仅脱落了皮上的粗毛及趾甲，是迄今为止在俄罗斯永久冻土层“墓穴”般深处发现的保存最佳的长毛象样本。
Missing only her hair and toenails, Lyuba is the best discovered example yet of a woolly mammoth spat from its tomb deep in the Russian permafrost.
由于许多长毛象死后很快就被冰冻的沉积物所包裹，许多长毛象的尸体在西伯利亚严寒的永久冻土层中得以完好保存。
Because many mammoths became quickly wrapped in frozen sediment after they died, many of their remains have survived in the Siberian deep freeze.
就在上个月，关于北极永久冻土层的甲烷气体释出及其对全球气候系统的影响，又出现了一番新闻报道，炒作，讨论和辩论的热潮。
This past month, there has been a flurry of news, speculation, discussion and debate concerning methane gas escaping from Arctic permafrost and its impact on the global climate system.
研究小组指出，就连这个数字也可能估计不足，因为它没有解释正反馈的方方面面，比如释放出甲烷和二氧化碳正在融化的永久冻土层。
Even the new figure could be an under-estimate, the team suggests, because it doesn't account for the full range of positive feedbacks, such as melting permafrost releasing methane and carbon dioxide.
雅库茨克一月份的平均气温为零下40.9度，而七月份的平均气温为18.7度，由于雅库茨克市建于永久冻土层上，因此有“冰城”之称。
The average temperature in Yakutsk for January was 40.9 degrees below zero, but in July the average temperature is 18. 7 degrees, because Yakutsk city is built on permafrost, so called "ice".
盆地大部分是由永久冻土带构成，是地球的两极地区的冻土层。
Much of the basin is made up of permafrost, a layer of frozen soil in Earth's polar regions.
盆地大部分是由永久冻土带构成，是地球的两极地区的冻土层。
Much of the basin is made up of permafrost, a layer of frozen soil in Earth's polar regions.
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