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east africa
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     Namely Indian Peninsula maitains west(east) wind anomaly at 850 hPa composite wind fields; West Indian Ocean-the coast of East Africa, south(north) wind anomaly;
     200hPa合成风场上印度半岛维持东(西)风距平,南亚高压偏强(弱),索马里沿岸为南(北)风距平。
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  相似匹配句对
     Africa to the East
     非洲面朝东方
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     AFRICA
     非洲
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     ‘Eve’Came From East Africa
     夏娃来自东非(英文)
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     Africa
     《非洲自由地带》
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     EAST AND WEST
     “东”写“西”说(三)
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  east africa
Sixty-two populations from North, Central, and Southeast Asia, Eastern and Western Europe, America, East Africa, Australia, and Melanesia have been examined.
      
In order to clarify the continued high utilization of the folk psychotherapist in East Africa, a total of 31 Tanzanian Shaman were studied.
      
The exploration of relations between the Nubians and the Nabateans opens new possibilities concerning the historical and historiographic linkages between ancient East Africa and the ancient Middle East.
      
Since Portuguese administrators in East Africa became dependent on the Swahili as a result of the conceptual categories they employed, we should more closely scrutinize the role and legacies of preconceptions in cross-cultural interaction.
      
Enacting their Business Environments: Asian Entrepreneurs in East Africa
      
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In this paper some synoptic and climatic analyses for the low latitude circulation over the Asian summer monsoon area and some areas in the southern hemisphere have been made by means of data of references [1-4]. According to the analysis of surface air pressure data the correlation of interannual variation of the monthly averaged July surface air pressure among some stations in the Southeast. Asia, Australia, India, Southwest Pacific Ocean, Indian Ocean and East Africa has been found.The monthly and five-day...

In this paper some synoptic and climatic analyses for the low latitude circulation over the Asian summer monsoon area and some areas in the southern hemisphere have been made by means of data of references [1-4]. According to the analysis of surface air pressure data the correlation of interannual variation of the monthly averaged July surface air pressure among some stations in the Southeast. Asia, Australia, India, Southwest Pacific Ocean, Indian Ocean and East Africa has been found.The monthly and five-day period composed-satellite images from April to July, 1975, have been made in order to analyse the development of the summer monsoon process. It is found that there is abrupt change in main circulation systems of Asia during the onset of the monsoon. In addition, the variation of ten-day period mean cloudiness in Asian summer monsoon areasM1(65-75°E, 30°S-30°N), M3(105-115°E, 30°S-30°N) and in Pacific Ocean area T (145-155° E, 30°S-30° N) (Pig. 1) has been investigated. It is found that there is a good correlation in the cloudiness variations in the southern and northern hemispheric areas of M1 and M2, while for T, which is located in the Pacific Ocean far away from the continent, such correlation is absent.Analysis of other data shows that there is better correlation in large scale circulation between the northern hemisphe e and the southern hemisphere in monsoon longitudes than in nonmonsoon longitudes.

研究不同地区环流之间的相互关联是一个重要课题。本文利用[1—4]等资料对东半球低纬度地区做了一些天气气候分析。对气压资料的分析表明,东南亚、澳大利亚、印度、南太平洋西部、印度洋及非洲东部一些台站的7月地面气压逐年变化有较好的相关。制作并分析了1975年4—9月亚洲夏季风建立和发展过程中各月和候的合成云图。发现在印度季风爆发的同时,东半球的主要环流系统都有一次相应的突变。此外,对比研究了亚洲季风区内M_1区(65°—75°E,30°S—30°N)、M_2区(105°—115°E,30°S—30°N)及太平洋T区(145°—155°E,30°S—30°N)的旬平均云量变化,发现在M_1、M_2区南、北半球的云量变化趋势有较好的相关,而在远离大陆的T区,南、北半球云量变化趋势相关差。对其它资料的分析也表明,南、北半球低纬度大尺度环流变化在亚洲季风区范围比在非季风区有更好的相关。

The development of the somali low level jet has been simulated by use of a 5-layer numerical model which includes diabatic physical processes. The results show that the Jet develops first at the boundary layer with 50 hPa thickness above the surface and then at the higher layers. The flow patterns at the lower tropospheric layers are generally the same when the quasi-stationary state arrives. The horizontal and the vertical configurations of the Jet are also described. It is found that there is a thermal vertical...

The development of the somali low level jet has been simulated by use of a 5-layer numerical model which includes diabatic physical processes. The results show that the Jet develops first at the boundary layer with 50 hPa thickness above the surface and then at the higher layers. The flow patterns at the lower tropospheric layers are generally the same when the quasi-stationary state arrives. The horizontal and the vertical configurations of the Jet are also described. It is found that there is a thermal vertical circulation between the east African mountains and the west part of the Indian ocean through which the Somali Jet flows. Five different numerical experiments have also been conducted by the same model, with 8-day time integration for each experiment. The purpose of the comparative experiments is 10 understand the dynamics of the Somali Jet and to compare the relative importances of some factors such as mountains, radiative heating and diurnal variation of the solar radiation. The land-sea contrast and large-scale condensation are both included in all the experiments.The simulated results show that the main determinative factor for the development of the Jet in the boundary layer is the differential heating caused by the land-sea contrast, the topo-praphic feature over the east Africa has a less impact on the pattern of the Jet, but it has an evident influence on the intensity and the tilt of the Jet axis. The experiment with only topography can not reproduce the Somali Jet fairlv, it further proves the relative importance of diabatic heating over the topography.

本文用P-σ混合坐标系五层初始方程模式,模拟了索马里过赤道低空气流的发展过程并对其形成机制进行了讨论.指出,索马里低空气流的发展可分为二个基本阶段:第一个阶段为低空气流在贴近地面的层次上发展,略高的层次上有序的气流尚未形成;第二个阶段为低空气流在近地层继续加强,同时较高层次上也出现了有序的气流.结构分析表明,索马里低空气流一般在700hPa以下,在索马里海岸附近有一个热力性垂直环流,索马里低空气流穿过其中。有关形成机制的模拟实验表明,在边界层中,气流的发展主要决定于非绝热加热的海陆不均匀分布,与地形高低的关系较小.但地形高低对气流的强度、垂直伸展高度和风速轴线随高度的倾斜有影响.在不考虑非绝热加热作用而只考虑地形的模拟实验中,索马里低空气流不能完整地模拟出来.

The East African monsoons may be considered as the extension of the South Asian tropical monsoon system.The most important characteristics of both the North and the South monsoon is dryness,As a result,total rainfall in the East Africa is lowest in the region near the equator of the earth,That some factors affectel the agriculture was discussed in the paper.

东非季风属于亚洲南部热带季风系统的延伸部分,其最主要的特征是南、北两种季风均很干燥,从而使东非成为全球赤道附近雨量最少的地区。本文从降雨量与农业的关系中找出了几种影响农业生产的定量指标。

 
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