permafrost

This was a challenge, because the permafrost is barely permanent.

这是一大挑战, 因为这里的冻土并非永久不变.

Many underground pipelines are carried with heating tracer in permafrost region.

分析了带伴热管的寒区埋地管道的几何特性,建立了数学模型.

They are distributed in polar permafrost horizons and submarine sediments.

分布于极地永冻层和海底沉积层中.

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.

Lastly, the relations between the climatic limit of permafrost and modern climatic snowline are discussed.

在此基础上, 进而探讨了中国现代气候多年冻土线与气候雪线之间的关系.

An example a tipping point is the thawing of the permafrost.

一个例子就是永久冻土层的融化.

Canadian researchers expressed serious concerns about the erosion of permafrost in the Arctic.

加拿大研究人员对北极地区永冻层的侵蚀表示严重关切.

How much methane and dioxide might be released from the rotting permafrost?

腐烂的冻土层将会向空气中排放多少甲烷和二氧化碳?

The permafrost is thawing now.

正在解冻.

Engineering damages of embankment in permafrost regions are mainly caused by thaw settlement of permafrost.

摘要多年冻土区道路病害主要是由路基下冻土温度升高融化下沉引起.

As permafrost gets warmer, it could become wetlands.

永久冻土变得更加温暖时, 将变成湿地.

Frost crack is the main failuve of asphalt pavement in permafrost region.

冻裂是多年冻土地区沥青路面的主要病害.

Perhaps this is caused by the sudden melting of subsurface permafrost.

可能是地下永久冻土突然融化所造成.

Thrawing frozen ground is the key to alluvial gold mining in Permafrost horizon.

多年冻土砂金矿的开采,解冻是关健.

Instead of building directly over permafrost, they chose to build some parts on high bridges.

他们不在冻土上直接修筑铁路,而是选择某些部份盖在高架桥上.

Vladimir Romanovsky permafrost expert also at the University of Alaska, Fairbanks, says the study is worrying.

一名用冻土层专家,同样来自位于费尔班克斯的阿拉斯加大学, 称研究令人担忧.

Thawing and refreezing each year, an active layer of soil lies over permafrost.

覆盖在永冻层上方的一层活冻层土壤,每年都会融化和重新冻结.

Permafrost melt and lack of glaciers will make landslides and debris to produce greatly increased.

冻土的溶化和缺少冰川会使山体滑坡和泥石流的产生机会大大增加.

Its stability is destroyed with longitudinal cracks of embankment caused by asymmetric settlement of permafrost.

由于阴阳坡差异引起路基不均匀沉降而导致的路面纵向裂缝病害严重影响了路基的稳定性.

Permafrost, cold, wind, and scant rainfall make it difficult for most and animals to survive here.

永冻土, 寒冷, 风和稀少的降水使得大多数动植物难以在这里生存.

As the permafrost melts, the land loses its capacity to absorb water.

由于冻土融化, 陆地会失去吸水性.

The harder the material under the permafrost is, the larger the chamber charge required.

永冻层之下的土壤越硬, 所需要的药室装药量也越大.

It became entombed in the permafrost, where it remained until recently freed.

它被掩埋在永久冻土层里, 直到最近才被挖掘出来.

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?

An example of a tipping point is the thawing of the permafrost.

“气候引爆点”的一个例子就是永久冻土层的融化.