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降水
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  precipitation
    Relationship Between Monthly 500hPa Height fields and Precipitation Fields Over China in Summer
    夏季逐月500hPa高度场与我国降水的关系分析
短句来源
    Study on Application of Fuzzy Forecasting Method of Single-Factor for Predicting Irrigation Requirement from Precipitation
    应用模糊推理单要素预报法预测降水灌溉量的探讨
短句来源
    ANALYSIS OF THE NATURAL PRECIPITATION IN 1995 IN FLOOD SEASON AND WATER LEVEL OF DONGTING LAKE
    洞庭湖洪水规模与1995年自然降水分析
短句来源
    Through a statistic calculation and frequency analysis of the data from 16 rainfall gauge stations in Beijing,from 1950 to 2005,the spatiotemporal distribution characteristics of the precipitation in Beijing and its trend are analyzed. The result shows: the average annual precipitation of Beijing is 585.8 mm and the is 0.248;
    通过对北京市16个雨量站1950~2005年降水资料的统计计算和频率分析,探讨了北京市降水的时空分布特征及其变化趋势,结果表明:北京市多年平均年降水量为585.8 mm,多年平均降水量变差系数为0.248;
短句来源
    The paper investigates the interaction between variation of precipitation landscape patterns and runoff,and results show that: 1)Precipitation in upper-middle main Jinghe watershed over 40 years descends little,and the isograms of inclination rate of precipitation are between-4.9mm/10a to-11.3mm/10a.
    本文研究泾河流域降雨-景观-径流变化的相互作用,结果表明:①泾河流域中上游主流域40多年来的降水具有微弱下降趋势,降雨倾向率为-4.9mm/10~-11.3mm/10年;
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  rainfall
    RAINFALL INFLUENCE ON THE SPRING NO. 43 IN XINJIANG AND THE ANALYSIS OF SOME EARTHQUAKE EXAMPLES
    新疆43号泉的降水影响及震例分析
短句来源
    Through a statistic calculation and frequency analysis of the data from 16 rainfall gauge stations in Beijing,from 1950 to 2005,the spatiotemporal distribution characteristics of the precipitation in Beijing and its trend are analyzed. The result shows: the average annual precipitation of Beijing is 585.8 mm and the is 0.248;
    通过对北京市16个雨量站1950~2005年降水资料的统计计算和频率分析,探讨了北京市降水的时空分布特征及其变化趋势,结果表明:北京市多年平均年降水量为585.8 mm,多年平均降水量变差系数为0.248;
短句来源
    Comparative Study of Monthly Rainfall Runoff Models in North China
    华北地区流域月降水径流模型比较研究
短句来源
    Analysis of Rainfall Distribution and the Variation Features in the Region of Hekouzhen to Longmen in the Middle Yellow River
    黄河中游河龙区间降水分布及其变化特点分析
短句来源
    Variation of Rainfall over East Area of Jianghuai Watershed Anhui Province and Its Connection to Sediment Transport in Chi River Watershed
    皖江淮分水岭东部降水变化与池河流域输沙关系的研究
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  “降水”译为未确定词的双语例句
    The Time-Space Distribution of Precipitable Water over the Mainland of China
    中国大陆上空可降水的时空分布
短句来源
    Isotopic analysis indicates that the hot springs are recharged by meteoric water and the age of hot spring No. 1 is 19 a.
    同位素研究结果表明,温泉的补给来源为大气降水,1号温泉水年龄约19a。
短句来源
    In the headwaters,the ecosystem degradation of alpine meadow and swamp meadow was the key factor to result in variation of runoff,precipitation-runoff coefficient decrease and flood frequency increase.
    高寒沼泽湿地和高寒草甸生态系统对于源区河川径流的形成与稳定起到关键作用,这两类生态系统的显著退化是驱动河川径流过程中变差增大、降水-径流系数减少以及洪水频率增加的主要原因.
短句来源
    (3) there is 20% margin in their changes am- plitude,this mainly resulted from high frequent human activities.
    (3)河川径流积极响应降水的变化,然而河川径流变化幅度却比降水变化幅度大20%,这个偏差主要是由于频繁的人类活动的干扰造成的。
短句来源
    Simulation of Influence of Climate Change on Water Resource over Luanhe River Valley Using a Hydrological Model (I): Introduction of Precipitation-Runoff Modeling System(PRMS) and Its Replant over Luanhe River Valley
    气候变化对滦河流域水资源影响的水文模式模拟 (Ⅰ)降水径流模式系统(PRMS)介绍及其在滦河流域的移植
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  precipitation
The water-soluble glucan was obtained from Pleurotus florida fruit bodies by hot water extraction, ethanol precipitation, DEAE cellulose dialysis and Sephadex G-75 gel filtration.
      
Preparation and characterization of nanocrystalline ZnO by direct precipitation method
      
Nanocrystalline ZnO was prepared with ZnCl2·2H2O and (NH4)2CO3 as raw materials by direct precipitation method.
      
The ion-exchanger LiAlTiO4 of spinel type was prepared by the common precipitation/hydrothermal crystallization method, and was acid-modified.
      
The precursors of Fe2O3-SiO2 mixed oxides prepared through co-precipitation method were modified by microwave hydrothermal treatment for the first time.
      
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  rainfall
The two sites have similar altitudes, soil types, annual mean rainfall and seasonality of dry and wet.
      
At the same time, better correlative relationship between runoff and sediment production and rainfall and rainfall intensity were testified by multiple regression, but the correlation decreased gradually with the increase of canopy density of forest.
      
When the soil is covered only by litter, both the maximal rainfall amount and intensity in different forest stands are different if there is no water infiltration and runoff from the ground surface.
      
The river runoff had a close correlation with annual rainfall, the size of forest harvesting and regeneration.
      
The reduction of peak flow rates was significant when rainfall peak was higher than 0.8 mm/min, especially for short-term rainfall events.
      
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The current methods of analyzing flood-causing storm data are rather empirical and unsatisfactory. This is owing to lack of a theoretical scheme analyzing the conflux of surface and channel flows derived from runoff due to rainfall on the drainage basin. Lately, since the writer made a tentative approach to the formulation of such a scheme [1], [9], he further found that as engineers are already not satisfied with a single value of peak discharge in answering the demands of engineering design and require the...

The current methods of analyzing flood-causing storm data are rather empirical and unsatisfactory. This is owing to lack of a theoretical scheme analyzing the conflux of surface and channel flows derived from runoff due to rainfall on the drainage basin. Lately, since the writer made a tentative approach to the formulation of such a scheme [1], [9], he further found that as engineers are already not satisfied with a single value of peak discharge in answering the demands of engineering design and require the data of a flood hydrograph that corresponds to a given probability of happening, then in answering the requirement for flood-causing storm data, they will also not be satisfied with the data in the present form of duration and average intensity of rainfall and will refuire it in the form of hyetograph that produces the maximum flood hydrograph. In respect to analyses of thunderstorm data on small drainage basins, this paper points out the deficits of the current methods and proposes a method of time series for finding the hyetograph corresponding to any given probability of its occurrence. In respect to analysis of storm data on large drainage basins, the paper discusses the probabilities of occurrences of various forms of precipitation that causes floods and methods of analyses of rainfall depth-duration-area relations and design storms,

我国国境内的洪水绝大部分是由大雨所造成的,因此研究洪水的成因必先分析暴雨的性质。目前动力气象学的已有知识尚不能用来定量地分析降雨的性质,所以必须采用了暴雨资料的一些简单的组成要素,如雨率、雨时和雨面等,它们之间的关系及其出现的概率只能 当地观测资料所绘出的关系线、用适线法把代表资料的关系公式推求出来,这样来分析暴雨的性质。 世界各国现行的造洪暴雨资料分析方法是不完善的,其理论基础是很薄弱的O这主要是由於以往对於更基本的流域的雨水怎样汇成河中流率的力学分析没有能得出一套理论系统来,困而无从确知究竟需要怎样的暴雨资料。近年作者总结了降水集流的理论系统〔丑〕〔9〕後,认为对於洪水资料的要求工程师们饮已不满足於洪案流率一([t]数值,且进而要求相应某一概率的流率时程线,则对於造洪暴雨资料的要求自亦不能满足於雨时及其相应的平均雨率,而应进而要求那个产生最大流率时程线的而率时程线;这些尚民是对於小流域上暴雨资料的分析法而言的。 本文对於小流域上阵雨资料的分析法指出了现行雨率——而时——概率关系分析法的本质和缺点、用站年法延长系列和用日雨量等值线插补雨季——而时关系法的不合理性,并建议了一种推求相应一定概率的雨...

我国国境内的洪水绝大部分是由大雨所造成的,因此研究洪水的成因必先分析暴雨的性质。目前动力气象学的已有知识尚不能用来定量地分析降雨的性质,所以必须采用了暴雨资料的一些简单的组成要素,如雨率、雨时和雨面等,它们之间的关系及其出现的概率只能 当地观测资料所绘出的关系线、用适线法把代表资料的关系公式推求出来,这样来分析暴雨的性质。 世界各国现行的造洪暴雨资料分析方法是不完善的,其理论基础是很薄弱的O这主要是由於以往对於更基本的流域的雨水怎样汇成河中流率的力学分析没有能得出一套理论系统来,困而无从确知究竟需要怎样的暴雨资料。近年作者总结了降水集流的理论系统〔丑〕〔9〕後,认为对於洪水资料的要求工程师们饮已不满足於洪案流率一([t]数值,且进而要求相应某一概率的流率时程线,则对於造洪暴雨资料的要求自亦不能满足於雨时及其相应的平均雨率,而应进而要求那个产生最大流率时程线的而率时程线;这些尚民是对於小流域上暴雨资料的分析法而言的。 本文对於小流域上阵雨资料的分析法指出了现行雨率——而时——概率关系分析法的本质和缺点、用站年法延长系列和用日雨量等值线插补雨季——而时关系法的不合理性,并建议了一种推求相应一定概率的雨率时程线的方?

On glaciers in the eastern Tianshan Mountains, separate measurements of amounts of accumulation and abation are difficult, since accumulation and ablation occur simultaneously in the warm season. To estimate accumulation and ablation independently, meteorological observations around Glacier D-5 were made in summer. In comparison with air temperature on the ground, much lowering of that and smaller diurnal range were seen on the glacier. From the analysis of upper weather charts, the main cause of precipitation...

On glaciers in the eastern Tianshan Mountains, separate measurements of amounts of accumulation and abation are difficult, since accumulation and ablation occur simultaneously in the warm season. To estimate accumulation and ablation independently, meteorological observations around Glacier D-5 were made in summer. In comparison with air temperature on the ground, much lowering of that and smaller diurnal range were seen on the glacier. From the analysis of upper weather charts, the main cause of precipitation is attributed to the cold trough from the polar region. Since the relation between the probability of occurrence of solid precipitation (S:%) and surface air temperature (T: C) is important for glacier accumulation, the relation of [S=-25T-108 ] is obtained from the observational results. The relation between ablation (a : cm water) and the degree day index (∑T: sum of daily mean air temperature. (.day) is also obtained as [a = 1.5∑T]. By the use of these relations, accumulation, ablation and balance on the glacier are estimated. The agreement between the calculated balance and observational results is fairly good except when the glacier is covered by new snow with high albedo Meteorological conditions and mass balance arc compared briefly with those in the Nepal Himalaya.

在东天山冰川上,积累和消融是在暖季同时发生的,故分别对积累量和消融量的测量是困难的。为了单独估算积累和消融,夏天我们在D-5冰川附近进行了气象观测。与地面气温相比较,发现冰川上气温比较低,且具有较小的日变化幅度。由高空天气图的分析可知,降水的主要原因可归结于来自极地的冷槽。固态降水发生的频数(S:%)和地面气温(T:℃)之间的关系对冰川积累很重要,这种关系(S=25T+108)可由观测结果得到。消融(a:厘米水层)和日积温(∑T:日平均气温之和,℃·日)也可由关系式(a=1.5∑T)得到。通过这些关系的应用,我们可以估算冰川上积累、消融和物质平衡。除冰川为具有高反射率的新雪所覆盖面外,计算的物质平衡和观测结果很吻合,气象条件和物质平衡与尼伯尔喜马拉雅山冰川进行了简要的比较。

The persistent and heavy rain covering the upper valley of the Han river in Autumn is one of the important climatic features in China.

汉江上游秋季暴雨频繁而持久,强度高、洪量大,是我国天气气候上的一大特色.本文根据水汽收支方程对秋季暴雨个例进行了计算,所得结果与实测面雨深比较一致.选取水汽净输送量作为放大因子,在暴雨组合的基础上再予以放大,估算了汉江上游秋季1-7天可能最大降水.通过合理性分析,其结果是可信的.

 
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