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secular
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  长期
    Secular Variation of Icelandic Low Pressure and Atlantic High Pressure and Its Influence to Our country's Climate in Recent Centuries
    近百年来冰岛低压和大西洋高压的长期变化及其对我国气候变化的影响
短句来源
    Temporal-Spatial Feature of Secular Variation of Global Land Rainfall for June-August during 1948-2001
    1948—2001年全球陆地6—8月降水长期变化的时空特征
短句来源
    THE SECULAR VARIATION OF GLOBAL LAND RAINFALL FIELDS IN SEPTEMBER-NOVEMBER FROM 1948~2001
    1948~2001年全球陆地9~11月降水的长期变化
短句来源
    SECULAR VARIATION OF PRECIPITATION AND CHANGE OF FLOOD /DROUGHT OF GLOBA LAND IN DEC.-FEB. DURING 1948-2001
    1948~2001年全球陆地12~2月降水旱涝长期变化
短句来源
    Temporal-Spatial Features of Secular Variations of the Global Land Rainfall of March to May during 1948-2001
    1948—2001年全球陆地春季降水长期变化的时空特征
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    THE SECULAR TREND VARIATIONS AND ABRUPT CHANGE OF NORTHERN 500 hPa GEOPOTENTIAL HEIGHT
    北半球500hPa高度场趋势变化与突变
短句来源
    Secular variation of global land annual precipitation for 1948-2003
    1948-2003年全球陆地年降水量变化特征
短句来源
    The result shows that the secular annual mean basin actual evapotranspiration is 378mm in the Yellow River valley and the error can be controlled in 8%.
    结果显示,黄河流域多年平均实际蒸散发为378mm,估算误差控制在8%以内。
短句来源
    The result shows that the secular annual mean actual evapotranspiration is 378mm in the Yellow river and the error can be controlled in 8%.
    模拟结果显示,黄河流域多年平均实际蒸散(发)为378mm,估算误差控制在8%以内。
短句来源
    The dynamic characteristics of spatial distribution, annual cycle and secular variation ofseasonal snow cover in western China were investigated by using the best information concerning microwave derived snow depth charts produced by NASA data from SMMR (1978-1987), operational NOAA digitized weekly snow cover extent charts (1973-1987) ,short wave DMSP imagery (1978-1987), in conjuction with daily snow depth records in 175 ground climate stations covering the period from 1957 through 1987.
    综合中国西部175个地面气象台站1957—1987年逐日积雪深度、密度和月积雪日数资料,1978年-1987年SMMR周积雪深度资料,1973—1987年NOAA周积雪面积资料,以及50余幅DMSP影像图,本文阐述中国西部积雪空间分布、季节变化及年际波动特征,并对中国西部积雪大尺度气候效应和青藏高原第四纪冰期问题作了初步讨论。
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  secular
We assessed the secular trends in the serum lipid levels in Shanghai residents from 1973 to 1999.
      
Secular evolution of rotary motion of a charged satellite in a decaying orbit
      
Secular perturbations of the orbit are taken into account: they are caused by the second zonal harmonic of the geopotential.
      
Using the method of averaging, basic regularities of the secular evolution of rotary motion of a screened satellite are revealed.
      
Using double numerical averaging, the equations are constructed that describe the secular evolution of eccentricity and perihelion longitude of the asteroid orbit.
      
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The monthly temperature charts of China during the period of 1909-1958 are used to analyze the secular temperature variations in China. The monthly temperature in China is classified into 5 ranks: cold (C), warm (W), slightly cold (Cw), slightly warm (Wc) and normal (N). The climatic variations of these 5 ranks of monthly temperature in China are tabulated in Table 1 and 2. From an analysis of Fig. 3-4, and Table 3, we find that the secular variations of warm and cold months. in China are definitely...

The monthly temperature charts of China during the period of 1909-1958 are used to analyze the secular temperature variations in China. The monthly temperature in China is classified into 5 ranks: cold (C), warm (W), slightly cold (Cw), slightly warm (Wc) and normal (N). The climatic variations of these 5 ranks of monthly temperature in China are tabulated in Table 1 and 2. From an analysis of Fig. 3-4, and Table 3, we find that the secular variations of warm and cold months. in China are definitely correlated with the cyclic variations of solar activity. It is also found, that once after a cold or a warm period (1-3 months) appears the probablity of occurrence of same trend of temperature in the following half year will be - greater than that of the opposite trend of monthly temperature. " .

本文根据1909—1958年五十年时期内,中国逐月的温度等级分布图探讨了我国温度的多年变化。根据温度等级分布图,把中国各月温度状况分为五类:即冷月、暖月、偏冷月、偏暖月和正常月。五类温度月份出现的气候特征见表1和表2。从图3—4和表3的分析,发现50年来在我国出现的暖月和冷月与太阳活动的周期性变化有一定的关联。在我国出现一次冷期或暖期(1—3月)之后的半年内,一般仍以出现同类温度符号的机率大于相反符号的机率。

The monthly mean temperature at 137 stations in China in present century are classified into five grades 1-5. Maps of grade distribution have been prepared for every month and year. According to the intensity of cold or warm areas, the monthly temperature grade distribution is classified into 5 types: cold (C), warm (W), sub-cold (Cw), sub-warm (Wc) and normal (N). For every month, mean grades are computed for seven regions: northeast China; north China; middle and lower Yangtze; south China; southwest China;...

The monthly mean temperature at 137 stations in China in present century are classified into five grades 1-5. Maps of grade distribution have been prepared for every month and year. According to the intensity of cold or warm areas, the monthly temperature grade distribution is classified into 5 types: cold (C), warm (W), sub-cold (Cw), sub-warm (Wc) and normal (N). For every month, mean grades are computed for seven regions: northeast China; north China; middle and lower Yangtze; south China; southwest China; northwest China; Xinjiang.Based on the above materials statistical anaysis of the occurences and secular variation of five types are made and associations among the regions are studied. The characteristics of temperature variation of last thirty years are discussed.These results are useful for understanding the climatic change in China and may serve as background for long-range forecasting.

将本世纪以来我国137个站每个站逐月的月平均气温划分为五个等级,绘制了全国范围的历年逐月温度等级分布图。根据图中各月冷暖区范围大小,分为暖月、偏暖月、冷月、偏冷月和正常月五种类型。计算了全国范围和东北、华北、长江中下游、华南、西北(主要指陕西、甘肃、宁夏、青海等四省区。以下同)、西南和新疆等七个区的温度等级值。根据这些资料,统计分析了五类温度月份出现的气候特征及不同季节冷暖月次的多年变化,研究了全国和各区温度等级值的演变规律及其相互联系,以及近30年来我国气温演变的某些特征。

A mixed polynomial method is adopted to expand the fields of the total amount of ozone at 40°—85°N from July 1957 through June 1967. Analyses of the coefficients in the expansions reveal the characteristic features of the distribution in space of the secular monthly means of the ozone field and the variation of these features with seasons. By the smae method the information processing has been accomplished for the height field at 10, 30, 50, 100, 300 and 500 mb at 20-65°N in the corresponding period of...

A mixed polynomial method is adopted to expand the fields of the total amount of ozone at 40°—85°N from July 1957 through June 1967. Analyses of the coefficients in the expansions reveal the characteristic features of the distribution in space of the secular monthly means of the ozone field and the variation of these features with seasons. By the smae method the information processing has been accomplished for the height field at 10, 30, 50, 100, 300 and 500 mb at 20-65°N in the corresponding period of time. On this basis studies are made by syno-p tic-statistical method of the distribution of the total amount of ozone and its seasonal variation as well as its correlation with that of the stratospheric-tropospheric circulation.

本文用混合多项式方法展开1957年7月—1967年6月北半球40°—85°N纬带臭氧总量场.通过对展开系数的分析,揭示了各月多年平均臭氧场的空间分布特征和这些特征随季节的变化;用同样方法完成了相应时期20°—65°N纬带10、30、50:100、300、500毫巴等压面高度场的信息化处理:在此基础上,应用天气统计学方法研究了臭氧总量分布的李节变化及其与平流层-对流层环流季节变化的时、空联系。

 
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