查询词典 permafrost

There are a lot of active measures to protect permafrost adopted in the construction of the Qinghai-Tibet Railway,of which one is awning .

在青藏铁路的施工建设中，许多主动保护冻土的措施已经被采用，遮阳板就是其中之一。

Rising sea levels and the melting of permafrost are causing their island to quickly erode into the Chukchi Sea.

海平面升高和融化的永久冻土是引起他们的岛屿迅速腐蚀到楚科奇海。

Based on the governing differential equations of the transient problem of temperature fields with phase change, the two-dimensional finite element formula of computing temperature fields around a buried pipeline in permafrost regions are achieved by using Galerkin's method.

根据相变瞬态温度场的控制微分方程，应用Galerkin法推导出计算温度场的二维有限元公式，对中国东北多年冻土区运行30年的加热输油管道土壤温度场进行了计算分析和比较。

In order to analyze stress mechanics of corm- gated pipe culvert on the condition of thaw settlement , the paper analyzes mechanical property of metal corm- gated pipe culvert and corrugated pipe in permafrost re- gion with large-scale finite element software.

为分析波纹管涵洞融沉下的受力机理，利用大型有限元软件对多年冻土地区采用的金属波纹管涵洞和波纹管本身进行力学性能分析，通过分析可知，金属波纹管本身具有较大的横向补偿位移的能力，波纹管涵洞对预防和彻底解决涵洞因融沉而导致的破坏较为有效。

"As a result, sub-sea permafrost has warmed up to minus 1 degree Celsius [30 degrees Fahrenheit]," Semiletov said."It's very, very close to the thawing point."

"其结果，濒临大海的永久冻土层已经被加温到零下1度"，Semiletov 说，"这就非常、非常接近融化点了"。

In order to study the near-surface permafrost distribution space, field survey and sampling method are used to study the issue.

为了研究近地表面多年冻土的空间分布规律，采用野外调查、取样方法对该问题进行研究。

The climate of here is cold and humid and lack of oxygen,everywhere is rugged drumlin、ice cone and permafrost of plateau,the ecological environment is unique and the natural scenery is magnificent.

这里气候寒冷潮湿，空气稀薄，到处是突兀嶙峋的冰丘和变幻莫测的冰锥以及终年不化的高原冻土层，生态环境独特、自然景观壮观。

This theory is demonstrated by three examples: the natural gas blowout when drilling in the permafrost, the hydrate cropouts in the seafloor and the gas bubbles in abyssal plumes. Then, several conclusions are drawn: there maybe exist the seeping and diffusing types of gas hydrate reservoirs which may still be growing in the Xisha trough, Dongsha continental slope of the South China Sea, west and south of Taiwan basin, and Bijianan basin; whereas in the Qiangtang basin of the Qinghai\|Tibet plateau may exist the regressive\|type gas hydrate deposit. Furthermore, the phenomenon of hydrocarbon gas leaking in the Qilian mountain areas and Junger basin indicates that these areas may ensconce gas hydrate reservoirs.

指出天然气水合物赋存状态主要有3种类型，即成长型、成熟型和消退型，认为我国南海北部陆坡区的西沙海槽、东沙群岛东南坡、台西南盆地、笔架南盆地等区域有可能存在着仍处于发育阶段的渗透型或扩散型水合物层，而青藏高原羌塘盆地则是属于消退型水合物，祁连山地区、准噶尔盆地等的烃类气体泄漏表明在我国西北和东北的冻土带也可能存在着含气水合物层。

So the distributing character of permafrost and ground ice have more significance for the rout...

本文主要在输电线路沿线冻土分布的基础上，重点对微地貌条件下冻土和厚层地下冰的分布发育规律进行了分析和研究。

So the distributing character of permafrost and ground ice have more significance for the route selection and position selection than other linear engineering.

本文主要在输电线路沿线冻土分布的基础上，重点对微地貌条件下冻土和厚层地下冰的分布发育规律进行了分析和研究。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。