permafrost zone 中文意思是什麼
permafrost zone
解釋
凍上帶- permafrost : n. 【地質學；地理學】永久凍土。
- zone : n 1 【地理】（地）帶。2 區域，范圍，界。3 〈古、詩〉（腰）帶。4 圈，環帶。5 【數學】（球面）帶；...
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There are three main genetic types : ( 1 ) biogas generated in high - latitude and low - temperature permafrost zone : ( 2 ) biogas generated in high salinity environment in high elevation ; ( 3 ) biogas in shallow pay generated in recent sediment
其主要成因類型有3種：高緯度低溫，永久凍土帶下形成生物氣；高海拔、高鹽度環境下形成生物氣；現代沉積物形成淺層生物氣。 -
This article analyzes the characteristics of permafrost earth, establishes mathematical model of earth thermal transfer, which consists of thermal transfer equation in thaw zone, the conservation relationship of heat quantity transferring from pipeline to earth and from earth surface to atmosphere, earth temperatures at thaw zone interface, heat transfer condition of solid phase changing into liquid phase at phase interface
文章分析了永凍土的特點，建立了永凍土地帶土壤傳熱數學模型：融化圈內外傳熱方程、管道向土壤和土壤表面向大氣所放熱量的守恆關系、融化圈界面處土壤溫度、相變界面處固相變為液相的傳熱條件。 -
Discussion on buried seat of thermal insulation material for subgrade engineering in permafrost soil zone
凍土地區路基工程中隔熱材料埋設位置的探討 -
Continuous permafrost zone
連續永久凍原帶 -
When a buried pipeline goes through permafrost zone, thermal action between medium in pipeline and permafrost occurs and causes the frozen earth thawing, so the thaw settlement forms around the pipeline
摘要埋地油氣管道通過永凍土地帶時，由於管內介質與周圍的凍土發生了熱力作用，使冰土解凍，在管道周圍形成融化圈。 -
Taking an oil pipeline passing through permafrost as an example, the paper calculates and analyzes the positions and magnitudes of various maximum stresses, then put forwards the measures of reducing thermal deformation of pipeline in permafrost zone
還建立了理地管道模型，並以穿過永凍土地帶土壤的輸油管道為例，分析並計算了各種應力的最大值所在的位置和大小，提出了在永凍土地帶減小管道熱力變形的措施。 -
Application of thermal insulation material in plateau permafrost soil zone subgrade
高原多年凍土區路基保溫材料的應用
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