The 3/4 length of the 110 kV transmission line along the Qinghai-Tibet Railway passes through the high altitude permafrost region,so the lightning activity and the soil geological condition of these regions will greatly affect the lightning protection function of the transmission line,and this should be considered in the design process.
青藏铁路110 kV输电线路全程3/4处于高海拔冻土地带,该地区特有的雷电活动规律和土壤地质状况对输电线路的雷电防护效果有着很大的影响,需要在防雷设计中予以考虑。
Thermosiphon piles enable to increase the stability and bearing capacity of permafrost foundation and to prevent the foundation from frozen expansion and thaw settlement.
在多年冻土地带进行管道、铁路、公路等工程建设,必须解决冻土地基的稳定性问题。
Stability of gas hydrate in permafrost;
冻土带天然气水合物稳定性研究
The arctic tundra is at the top of the world around the North Pole.
北极冻原是指北极点周边的地区, 是世界最高的地方。
Role of Vegetation and Climate in Permafrost Active Layer Depth in Arctic Tundra of Northern Alaska and Canada
植被和气候对阿拉斯加和加拿大北部北极苔原地区多年冻土活动层厚度的影响(英文)
His feet were frostbitten in the arctic snow.
在北极雪地里他把脚冻伤了。
This is the vegetational climate of arctic permafrost regions.
这是北极永冻地区的植物气候。
The reason is that almost all of the water lies trapped in the Martian polar ice caps or frozen beneath the surface.
其原因是几乎所有的水都蕴藏在火星南北两极的冰盖下或冻结在表层下面。
The polar bear lives in the snow and ice at the North Pole.
北极熊住在北极的雪地以及冰原。
Magnetic minerals trapped inside ancient rocks have recorded hundreds of these so-called polarity reversals in the past500 million years.
在地磁反转后，指北针的指针会指向南极，而不再是冰冻的北极。
a black mucky soil with a frozen subsoil that is characteristic of arctic and subarctic regions.
黑色的腐殖土，有结冻的底土，是北极区和亚北极区的特征。
Degradation of Permafrost in the Northern Part of Northeastern China:Present State and Causal Analysis
东北北部多年冻土的退化现状及原因分析
Study on Electrochemical Performance of Magnesium Alloy Anodes in Qinghai-Tibetan Plateau Frozen Soil;
青藏高原冻土层中镁合金阳极电化学性能研究
North American subspecies of tundra swan having a soft whistling note.
冻原天鹅的北美洲亚种，以其柔和的鸣叫著名。
When a springtime cold snap suddenly froze the waters of an Arctic sound,more than 50 beluga whales were trapped by the ice and by the hungry polar bears in wait.
春天寒潮突降，将北极湾的水域冻结，50多头白鲸被困在冰中——还有饥饿的北极熊伺机而动。
Permanently frozen subsoil, occurring throughout the Polar Regions and locally in perennially frigid areas.
永冻土永久冰冻的下层土壤，出现在整个北极地区和部分长期寒冷的地区
A polar bear plays on the tundra near Churchill, Manitoba, Canada.
加拿大中南部马尼托巴湖附近的一只北极熊正在冻土上玩耍。
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。
The explorers spent months in the Arctic wastes.
探险家们在北极荒原上工作了几个月。
Effects of human engineering activities on permafrost active layer and its environment in northern Qinghai-Tibetan plateau.
人类工程活动对青藏高原北部多年冻土融化层及其环境的影响
Wilderness forests give way to arctic tundra in the Far North.
原生森林一直延伸到极远的北方始由极地草原取代。