permafrost的例句大全

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.

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.

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.

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.

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.

The most severe ice age in history, a period of total glaciation known as Snowball Earth, ended suddenly 635m years ago when large amounts of methane were released from areas of permafrost.

历史上最严重的冰河期，被称为雪球地球（Snowball Earth）期，当时地球完全被冰层覆盖。6.35亿年前，永久冻结带释放出大量甲烷，这一时期突然结束。

Permafrost-the frozensoil that forms the backbone of the Arctic tundra-is melting due to climbing global temperatures.

由永久冻土组成的北极冻原正在逐渐融化.

Application of Raised and Unventilated pile Foundation in Permafrost Regions

多年冻土区采暖房屋架空不通风式桩基础应用

New understanding of permafrost melt could soon alter global-climate models.

一项关于永冻土带融化的新的发现可能不久以后会改变全球的气候.

Therefore, as the saying goes that The key to success or failure of QTR is subgrade, and the key to subgrade is permafrost.

因此有青藏铁路成败的关键在路基，路基成败的关键在冻土之说。

Because the situation of the global climate has gradually deteriorated and the strength of human activities in this region is growing, the permafrost in QTP shows a trend of serous degradation.

而当今全球范围内气候不断变暖，环境逐步恶化，加上区域内各种人类活动强度与日俱增，在此背景下，青藏高原的多年冻土呈现出严重退化的态势。

The samples here come from the project named "Natural Gas Hydrate Resources Prospect Investigation in Domestic Permafrost Area" which was carried out by Institude of Mineral and Resources CAGS.

本文的研究材料来源于中国地质科学院矿产资源所承担的我国陆域永久冻土带天然气水合物资源远景调查项目。

Rising temperatures could melt permafrost and destabilise the railway's foundation.

在全球变暖的大背景下，不断增加的气温也可能消融永久冻土带，让铁路的路基松动。

A Review of the Effect of Degradation of Glaciers and Permafrost on Railways The Research of the Friendships of Adolescents with Social Withdrawal Behavior

现代冰川和冻土退缩对铁路影响的研究述评社会退缩青少年的友谊特点

The embankment model was built, and the thermo-mechanism was studied to protect permafrost by the effects of Balch and natural convection in the coarse gravel layer.

根据粗砾石的Balch效应和级配改良粗粒层自然对流效应，分析级配改良结构性路基保护多年冻土的热学工作机制；

This paper briefly introduces the grading of Qingshuihe Test Section on Qinghai-Xizang Railway and the diseases of the subgrade occurred after one freeze-thaw cycle, makes primary analysis on existing problems, and puts forward some methods for the grading in the permafrost zones on continental plateau.

简要介绍了青藏铁路试验段路基的施工过程，及一个冻融周期后路基所出现的病害，对所存在的问题进行了初步分析，并提出了高原冻土地区路基施工的一些方法。

Around one-fifth of the world's land area lies within the permafrost zone.

世界陆地面积的 五分之一 在永久冻土区.

Stability assessment of railway roadbed slope in permafrost area is difficult from others, because the location of interface between frosting and thawing is an allimportant factor to the stability of the embankment.

多年冻土地温变化使斜坡路基稳定性分析不同于普通土路基，其冻融交界面位置是制约斜坡路基稳定性的关键所在。

Field investigation shows no permafrost in the interior of the Zoige Plateau. The mean annual air temperature is 0.6~ 3.3 ℃, and the annual range of air temperature is 19.1~ 21 2 ℃.

若尔盖高原内部年平均气温0.6～3.3℃，气温年较差19.1～21.2℃，已不具备多年冻土形成和保存的气候条件。

Analysis of asphalt pavement structure response in permafrost region

多年冻土地区沥青路面结构响应分析