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seasonal frozen
相关语句
  季节冻土
     Annual Change and Abrupt Change of the Seasonal Frozen Soil in Xinjiang,China during 1961-2002
     1961—2002年新疆季节冻土多年变化及突变分析
短句来源
     Annual mean ground temperature increases about 0.3~0.7℃ in island permafrost and seasonal frozen ground areas ,and about 0.1~0.4℃ in predominantly continuous permafrost area.
     岛状多年冻土和季节冻土区年均地温升高约0 3~0 7℃,大片连续多年冻土区升幅较小,为0 1~0 4℃。
短句来源
     Soil Nailing Under the Influence of the Seasonal Frozen Soil
     季节冻土对土钉支护的影响
短句来源
     By analyzing the rule of temperature distribution in seasonal frozen soil area, the function of temperature with time is established.
     通过分析季节冻土区的温度分布规律,建立了温度随时间的变化函数。
短句来源
     Discussion stability calculation against frozen uplift for pile foundation in seasonal frozen soil areas
     季节冻土区桩基础抗冻拔稳定计算的探讨
短句来源
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  “seasonal frozen”译为未确定词的双语例句
     It is not cold enough to form permafrost. According to the temperature measurement from pits and boreholes (in July 1992), the ground temperature is 5 0~8 4℃ in the depth of 1 0~2 2 m, and shallow ground water temperature is 6 0~7 8℃. The seasonal frozen depth is 1 0~2 0 m.
     据1992年7月间试坑和钻孔测温,在1.0~2.2m深处地温为5~8.4℃,浅层地下水温6.0~7.8℃,由此判断不存在多年冻土,季节冻结深度为1.0~2.0m。
短句来源
     A Study of Naturally Thawing and Digging Method of Gold Mining in Seasonal Frozen Ground
     冻结砂金矿自然解冻和开采方法的研究
短句来源
     Application of Groundwater Condition in Soil Improvement in Seasonal Frozen Earth Region
     季节性冻土区地下水状况在土壤改良中的应用
短句来源
     In this paper, the data of the average and maximum depths of seasonal frozen earth and the frozen duration of soil at 10 cm in depth in Xinjiang during the 40-year period of 1961~2002 are analyzed.
     根据对新疆40年(1961-2002年)冬季平均冻土深度、最大冻土深度、土壤10cm深度封冻时段资料分析表明.
     The new improvous lining rigid flexible material of channel liner is suilable for improvous and lining project of small channel in north seasonal frozen earth, northwest collapsible loess, salinized soil and expansive soil area.
     本研究利用近几年研究的新材料和技术,研制出一种集防渗、护砌为一体、刚柔结合的新型渠道防渗护砌材料,适用于北方季节性的冻胀土、西北地区特殊的湿陷性黄土、盐胀土和膨胀土层地区的小型渠道防渗护砌工程。
短句来源
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  相似匹配句对
     The hazard of seasonal frozen soil
     季节性冻土的危害分析
短句来源
     Water Movement in Seasonal Unsaturated Frozen Soil
     水分在季节性冻土中的运动
短句来源
     Frozen Yogurt
     冷冻酸奶
短句来源
     Frozen desserts in Europe
     冷冻甜食在欧洲
短句来源
     Seasonal Affective Disorder
     季节性情感障碍(附2例报告)
短句来源
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  seasonal frozen
According to the spatial distribution of the third loading eigenvectors of (Ts-Ta) over the Qinghai-Xizang Plateau in cold season, the permafrost response region and the seasonal frozen ground response region are identified.
      
Seasonal frozen ground occurs in large parts of the territory in northern China, including Northeast, North, Northwest China and the Tibetan Plateau except for permafrost regions, and accounting for about 55% of the land area of China.
      
The seasonal frozen soil on the Qinghai-Tibet Plateau has strong response to climate change, and its freezing-thawing process also affects East Asia climate.
      
Anomaly feature of seasonal frozen soil variations on the Qinghai-Tibet Plateau
      
Permafrost with MAGT higher than-2°C will turn into seasonal frozen soils and even unfrozen soils.
      
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At the present time two kinds of fossil ice margins have been found, con-gelifolds and fossils sand (loess) wedges in the strata of the studied area. The former is mainly found in the limnetic strata at the top of the Salawusu Group(Q31), The middle Chengchuan Group (Q32-2), The middle and the lower Dagouwan Group (Q43) and at the bottom of Dishaogouwan Group (Q43) along the Salawusu He in the southeastern depression Among them the middle Chengchuan Group is the largest and the widest.Besider, it can also be...

At the present time two kinds of fossil ice margins have been found, con-gelifolds and fossils sand (loess) wedges in the strata of the studied area. The former is mainly found in the limnetic strata at the top of the Salawusu Group(Q31), The middle Chengchuan Group (Q32-2), The middle and the lower Dagouwan Group (Q43) and at the bottom of Dishaogouwan Group (Q43) along the Salawusu He in the southeastern depression Among them the middle Chengchuan Group is the largest and the widest.Besider, it can also be found in certain horizons along the wuding He, Lu He, Hailuitu He, yulin He and Salawusu He near the loess hilly areas. The latter is mainly presented in the Tertiary mud stone or red earth, in the lower-middle Pleistocene loess or the lower part of the late Pleistocene sand (earth) gravel layer and on the top of the middle Chengchuan Group in the central-western dry denuded upland and the flat and lower areas on the low ridge land of its extending part to the depression.According to the morphological characteristics of the profile, these folds and wedges had not any relation to the genesis of tectonic movement fluvial-erosion, accumulation, glacier, mudflow, hard press of landslide and drying crack of ground surface, but to the stratum deformation or disturbance caused by seasonal nonhomogeneous melting and freezing processes for a long time in the frozen eartn area.The big or medium type of nondeveloped congeli-folds (mainly situated in the upper late pleistocene strata) and sand (loess) wedges(situated in the middle and lower profile)were related to the seasonal process of the permafrost and the other congelifolds located in the middle and lower Holocene strata and the small type of sand (loess) wedges located in the upper profile might possibly be formed under the condition of the deep seasonal frozen earth and even the other year's frozen earth.According to the relation of the phenomenon of fossil ice margins with the existing horizon and the physterogenetic or contemporaneous association of over-rlying eolian sand or loess, and referring to the measured data of absolute age of the strata concerned, it is roughly determined that the congelifolds on the top of the Salawusu Group, in the middle Chengchuan Group, the middle and lower Dagouwan Groop and at the bottom of Dishaogouwan Group were formed at the early and late sections of the late stage of the late pleistocene of 70,000 and 25,000 years B.P.and the mid-late stage and at the beginning of the late stage of the Holocene of 5000 years or 3200 years and 2300 years B.P.respectively, the situation of sand (loess) wedges was very similar to the above-mentioned situation.These periods correspond to the early Yumu glacial epoch, the late Yumu glacial epoch and the beginning of new glacial epoch and the small glacial epoch.It shows that during these periods the studied area was influenced by the fluctuation of cold weather of the four glacial epochs of the Northern Hemisphere.The above-mentioned data of fossil ice margins have provided new reliable evidences for the reconstruction of the ancient climatic environment, the division of climatic strata, the comparison and the prode in the genesis in the study area since late pleistocene.The study suggests that the study area at the early and late sections of the late stage of late pleistocene and the mid and late Holocene or late Holocene was island-like permafrost and deep seasonal frozen earth or the other yearxs frozen earth area at the southern periphery of the continuous permafrost zone,the climate then was generally dry and cold and there was much northwest wind;eolian sand or loess and the deposition of fluviolacustrine facies or fossil soil belonged to the products of dry and cold ice margins or near ice margin environment and warm wet non-ice margin environment respectively, since late pleistocene the study area had undergonemany times of climatic fluctuation of the replacement of ice margin of warm wet facies with that of dry cold facies.The main cause was that the study area was situated in the transitional

本文概述了鄂尔多斯高第三系至全新统地层中融冻(衤习)皱和沙(土)楔两类古冰縁现象的分布与形态特征,探索了它们的成因以及同所在地层和上覆风成沙或黄土的关系,並对古冰縁现象的气候地层学意义作了讨论。

It is generally considered that tensiometer is only suitable for investigation of water-retention characters in low suction range on irrigated soils. But, it may also be adaptable for studying the dry cultivated (non-irrigated) soils in Northeast China, because in the presence of seasonal frozen layer the moisture content in upper soil layersis higher in early spring. The present paper deals mainly with the resistance of soil matrix in the early stage of soil drought.

本文研究了东北5种耕作土壤<1巴的低吸力段持水性能,包括影响低吸力段持水量的因素、所吸持水分对植物的有效程度、比水容量及脱水速度等。根据东北地区春旱尽管程度不同,但发生较为普遍的这一特点,分析、比较各种土壤基质本身存在的差异,并就它们对早期土壤干旱的抗逆能力作出评价。结果表明,熟化程度较高的草甸棕壤最优,而砂壤质冲积性草甸土最差。

The investigated area is located in the eastern fringe of permafrost area of Qinghai-Xizang Plateau, developed predominantly continous permafrost, isolated permafrost and seasonal frozen ground. The permafrost underlies an area of about 144 000 km2 or 61 % of the investigated area. The distribution of the permafrost depends chiefly on the vertical zonation, while the latitudinal zonation and longitudinal zonation, are also revealed in some extent. Generally, the lower limit of permafrost will be risen...

The investigated area is located in the eastern fringe of permafrost area of Qinghai-Xizang Plateau, developed predominantly continous permafrost, isolated permafrost and seasonal frozen ground. The permafrost underlies an area of about 144 000 km2 or 61 % of the investigated area. The distribution of the permafrost depends chiefly on the vertical zonation, while the latitudinal zonation and longitudinal zonation, are also revealed in some extent. Generally, the lower limit of permafrost will be risen 130 m with 1 °decrease of latitude. Because of the difference in precipitation, the lower limit of permafrost in western investigated area is higher than that in eastern.

研究区位于青藏高原多年冻土区的东部边缘带,发育着片状、岛状多年冻土和季节冻土。区内多年冻土面积144000km~2,占该区面积的61%。多年冻土分布主要受海拔控制,同时又呈现出纬向和经向地带性规律,平均纬度降低1°,多年冻土下界升高约130m。根据冻土平面分布的差异性,可将研究区分为四个冻土区。

 
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