permafrost region 中文意思是什麼

permafrost region 解釋
多年凍土區
  • permafrost : n. 【地質學；地理學】永久凍土。
  • region : n. 1. 地方，地域，地帶；地區；行政區，管轄區，區；左近，鄰近；（大氣、海水等的）層，界，境。2. 【解剖學；動物學】（身體的）局部，部位。3. （學問等的）范圍，領域。4. 〈罕用語〉天空。
  1. Frost heaving analysis of corrugated pipe culvert without foundation in permafrost region

    多年凍土地區無基波紋管涵洞凍脹分析
  2. Take the gelmud - lhasa product oil pipeline as an example, the authors study and discuss some technical problems about pipeline construction in the permafrost region, including pipe laying methods to be selected, cathodic protection technology, weather and environment variation along pipeline route and environment control of pipeline route

    以格拉輸油管道為例，探討了凍土地區管道工程可選擇的敷設方式、油氣管道的電保護技術、氣候和環境變化對管道的影響以及沿線環境管理等方面的問題。
  3. Based on the several year data of permafrost in the region of fenghuoshan mountain, this paper not only studied the transformation of upper limit of permafrost in natural ground and roadbed but also the thawing of permafrost, and analysed quantitatively the status of heat which have entered permafrost

    摘要基於對多年來風火山地區的多年凍土資料，研究了天然地區和路基下的凍土上限變化情況以及多年凍土的融化狀態，並定量分析了進入多年凍土內的熱狀況。
  4. The results demonstrate that the upper limit of permafrost in this area had declined from 1970s to the middle phase of 1990, and permafrost has appeared degenerate tendecy, but since middle 1990s, permafrost have a stable state ; ground temperature of roadbed near the earth surface is higher than that of the natural ground, thawing time of roadbed near the earth surface is longer than that of the natural ground, the heat income within the permafrost is greater than the heat release from the permafrost during anannual period, the heat accumulation within the permafrost is temporarily appeared as temperature rising, but with the heat accumulation within permafrost growing up year by year, permafrost temperature will become higher gradually, and strong thawing of permafrost could be happened in the region

    結果表明：風火山地區從20世紀70年代到90年代中期凍土上限下降，凍土出現退化現象，從90年代至今凍土趨于穩定；路基近地表地溫明顯高於對應天然地表下的地溫，路基近地表經歷的融化期長于對應天然地表，進入多年凍土區的熱收支也呈現出吸熱明顯大於放熱的周期性變化，進入多年凍土的熱積累暫時以增高地溫耗熱為主，但隨著凍土吸熱量的逐年積累、凍土溫度的不斷升高，本區凍土可能發生強烈融化。
  5. The construction techniques for pile foundation in plateau permafrost region

    青藏鐵路高原凍土地區樁基礎施工淺述
  6. Half of its territory lies beyond the arctic circle, winters last for eight months of the year with minus temperatures, and permafrost is a climatic feature, to a greater or lesser extent, of the entire region

    其領土一半不在北極冬季長達8個月與零下的溫度，且多年凍土是氣候特徵在較大或較小的程度上，對整個地區的穩定
  7. Numerical simulation of thermal state of eps insulation roadbed in permafrost region

    多年凍土區聚苯乙烯隔熱公路路基溫度場數值分析
  8. Mechanism and prevention of deformation cracks of embankments in the permafrost region along qinghai - xizang railway

    青藏鐵路多年凍土區路基變形裂縫發生機理及其防治
  9. Analysis of difference in thermal state between south faced slope and north faced slope of railway embankment in permafrost region

    多年凍土區鐵路路基陰陽坡面熱狀況差異分析
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