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降水     
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  precipitation
    A STUDY ON HYDROGEN AND OXYGEN ISOTOPIC COMPOSITION OF THE PRECIPITATION IN GUILIN AREA
    桂林地区大气降水的氢氧同位素研究
短句来源
    NATURAL OR THOGONAL FUNCTION ANALYSIS OF PRECIPITATION FIELD IN HUANGHE RIVER BASIN
    黄河流域降水场的自然正交函数分析
短句来源
    QUANTITATIVE RELATIONSHIP BETWEEN BAROMETRIC EFFICIENCY OF WELL-WATER LEVEL AND PRECIPITATION LOAD EFFICIENCY
    水井水位的气压效率和降水荷载效率之间的定量关系
短句来源
    Distribution characteristics of tritium in atmospheric precipitation in China
    我国大气降水氚分布特征
短句来源
    Prediction of Infiltration Recharge Amount of Precipitation for Groundwater inXuzhou City of Jiangsu
    徐州市地下水降水入渗补给量预测
短句来源
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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
    Observed data of rainfall,evaporation,soil moisture and groundwater are applied synthetically in the transient lumped parameter model(EARTH) to calculate vertical recharge of groundwater in Luancheng,Hebei Plain.
    以中国科学院栾城农业生态试验站的地下水位观测资料以及气象资料为基础,综合运用降水、蒸发、土壤水、地下水动态观测资料,利用EARTH模型计算了河北平原地下水垂向入渗补给量。
短句来源
    (2) 16.6-1 1.1kaB.R: C,O isotope is a little heavy, temperature rises, rainfall is inclined to be little;
    (2)16.6~11.1ka,C、O同位素偏重,气温上升,降水偏少;
    Rainfall Characteristics Analyses on landslide in Jiangxi Province
    诱发江西滑坡的降水特征分析
短句来源
    Based on the brief introduction of mesoscale numerical model MM5V3, twenty-two heavy rainfall processes in Three-Gorge Reservoir and the cause of a typical heavy rainfall are simulated by using MM5V3. In addition, the capability of MM5V3 to stimulate precipitations and weather patterns is analyzed.
    在简要介绍中尺度数值模式MM5V3后,为检验该模式对降水场和天气形势场的模拟能力,本文对三峡库区22个降水过程进行模拟了分析,并对典型的强降水个例及其成因进行了探讨。
短句来源
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  dewatering
    Base on the influence factors and current computing methods of ground settlement,ground settlement induced by supporting excavation and dewatering of foundation pit are analyzed by the method of finite-difference that Mohr-Coulomb Model is used with the engineering example.
    在归纳影响基坑开挖周边土体变形行为因素和总结当前地面沉降计算方法的基础上,结合具体工程实例采用以Mohr-Coulomb本构模型的有限差分法模拟基坑支护、降水和开挖过程,分析基坑开挖对周边土体沉降的影响。
短句来源
    Mathematical Model and Its Application of Horizontal Well Dewatering in Foundation-Pit
    水平井基坑降水的数学模型及应用
短句来源
    Numerical simulation based on the three dimensional full coupling model between deep foundation pit dewatering and land-subsidence
    深基坑降水与地面沉降变形三维全耦合模型及其数值模拟
短句来源
    Application of Biot Model In Well-point Dewatering Causing Ground Movement
    比奥模型在井点降水引起地面变形中的应用
短句来源
    Dewatering reinforcement test for a project and land subsidence in Pudong, Shanghai
    浦东某工程降水预压试验与地面沉降
短句来源
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  “降水”译为未确定词的双语例句
    OXYGEN ISOTOPIC COMPOSITION OF METEORIC WATER IN THE EASTERN PART OF XIZANG
    西藏东部大气降水氧同位素组成特征
短句来源
    Study on the background value of stable iso■opes in precipitations of China
    我国大气降水稳定同位素背景值的研究
短句来源
    ON THE CALCULATION FORMULA OF COMBINED RATIO OF MAGMATIC WATER—METEORIC WATER IN ORE—FORMING FLUID
    成矿流体岩浆水—大气降水二元混合比计算公式
短句来源
    APPLICATION OF RANDOM ARRANGED INTERFERING WELL GROUP EQUATIONS IN THE WELL POINT DRAWDOWN CALCULATIONS
    任意排列干扰井群方程在井点降水计算中的应用
短句来源
    RELATIONS OF δ~(18)O IN PRECIPITATONWITH TEMPERATURE AND PRECIPITATIONAMOUNT IN QINGHAI-XIZANG PLATEAU
    青藏高原降水中δ~(18)O与温度和降水量的关系
短句来源
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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.
      
更多          
  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.
      
更多          
  dewatering
The flocculating activity of polyelectrolytes is determined in aqueous kaolin suspensions and also in dewatering of an active sludge.
      
The annual average sludge production was 46.3 m3d-1, the annual average dosage for dewatering was 40 kg d-1.
      
Even when little saccharification occurred, the enzyme facilitated separation of water, fiber, and ash, so cellulase treatment could be an effective means for dewatering pulp sludges.
      
Dewatering of the released osmolyte would occur in two additional steps, consisting of its hydrolysis and the subsequent active uptake of its metabolites.
      
Dewatering and decontamination of artificially contaminated sediments during electrokinetic sedimentation and remediation proces
      
更多          
  precipitation correlation
Combined use of these two sets of parameters significantly improved the precipitation correlation for the northward moving case.
      
However, meaningless change in precipitation correlation was found for the westward moving case.
      


Since the beginning of the last half century, the science of hydrology through successive steps of development has advanced to the realm of quantitative analysis. Engineers employed empirical methods to compute river discharges from precipitation data in answer to the ever-increasing demands made upon hydrologic analyses for engineering works. Yet for the phenomena of conflux of flows from precipitations, there exist only meager and fragmental quantitative analyses, without, so far, a systematic study of their...

Since the beginning of the last half century, the science of hydrology through successive steps of development has advanced to the realm of quantitative analysis. Engineers employed empirical methods to compute river discharges from precipitation data in answer to the ever-increasing demands made upon hydrologic analyses for engineering works. Yet for the phenomena of conflux of flows from precipitations, there exist only meager and fragmental quantitative analyses, without, so far, a systematic study of their underlying theories recorded in literature. On account of this, the progress of hydrology in respect to theory as well as to prac- tice has been retarded. By means of hydrodynamic analysis, the author has tentatively made an approach to the establishment of such a scheme of theories, in which he divided the rainfall-runoff phenomena into three parts for separate analyses, i. e., the occurrence of runoff due to rainfall at a surface point, the surface flow, and. the conflux of channel flows. This paper is devoted to the first part, which is, in essence, an analysis of the basic hydrologic phenomena. The theories thus established may be used as a guide for various hydrologic analyses in practice, may be based upon to examine the validity of various methods of hydrologic calculations, and may be further used to develop an approximate yet rational method for computing discharges from precipitation data. In this paper, the author proposes a scheme of underlying theories for analyzing the hydrograph of surface flow due to rainfall at a point, in which the essence of basic hydrologic phenomena is revealed, and this is accompanied with calculations of an example. In the earlier years, R. E. Horton established a theory of correlations of rainfall and runoff from small drainage basins by analyzing the data of Homer's sprinkler experiments. Thereafter, researchers basing upon his theories and methods analyzed the relations between rainfall and runoff by sprinkler experiments or data from natural areas. On account of the fact that Horton's analysis does not begin with an accurate hydrodynamical viewpoint, problems are bound to arise in practice due to defects in the underlying theories. Shortcomings of Homer's analysis on the basis of the author's theories are pointed out and the practical value of sprinkler experiments estimated. A method proposed by E. V. Bodakoff for computing discharges due to storms on small basins has raised wide discussions among the Soviet scholars, many of whom hold different views. The author hereby points out the main shortcomings of Bodakoff's method, and gives a numerical example with results compared with those computed by the author's method, thus showing the limitations of Bodakoff's method in practical applications.

半世紀來,水文学在發展的过程中已進入了定量分析的途徑;工程師們曾用各种經驗性的方法依據降水的资料推演河槽裹水流的現象,以应各种工程建設对於水文分析的要求。但是对於降水集流的过程始終祇有一些零星、片面的数值分析,没有一套完整的理論系統,因此阻碍着水文学在理論与应用方面的發展。作者曾用流体力学的分析法初步建立了降水集流的理論系統,把降水集流的过程分為三個階段:雨降地面逕流的產生、地面流、槽流之滙集,分别予以分析。本文便是其中第一階段,亦即最基本水文現象的分析。这些建立了的理論可以用為指導各种水文分析的南針,用為評論各种水文計算法的依據,並可用以創造一种近似而合理的方法,从降水資料推算逕流資料。本文中作者貢献一套理論,以分析地面點上降雨產生逕流的过程,揭發了基本水文現象的本質,最後並列舉实例的計算。早年郝登(R.E.Horton)曾依據郝納(W.W.Homer)的地面流实驗資料建立了一套在小地域內降水和逕流關係之理論,其後学者們根據他的理論和方法,用人工降雨法或流域資料实測法來確定降水和逕流間的關係。郝登的分析並没有从準確的動力学观...

半世紀來,水文学在發展的过程中已進入了定量分析的途徑;工程師們曾用各种經驗性的方法依據降水的资料推演河槽裹水流的現象,以应各种工程建設对於水文分析的要求。但是对於降水集流的过程始終祇有一些零星、片面的数值分析,没有一套完整的理論系統,因此阻碍着水文学在理論与应用方面的發展。作者曾用流体力学的分析法初步建立了降水集流的理論系統,把降水集流的过程分為三個階段:雨降地面逕流的產生、地面流、槽流之滙集,分别予以分析。本文便是其中第一階段,亦即最基本水文現象的分析。这些建立了的理論可以用為指導各种水文分析的南針,用為評論各种水文計算法的依據,並可用以創造一种近似而合理的方法,从降水資料推算逕流資料。本文中作者貢献一套理論,以分析地面點上降雨產生逕流的过程,揭發了基本水文現象的本質,最後並列舉实例的計算。早年郝登(R.E.Horton)曾依據郝納(W.W.Homer)的地面流实驗資料建立了一套在小地域內降水和逕流關係之理論,其後学者們根據他的理論和方法,用人工降雨法或流域資料实測法來確定降水和逕流間的關係。郝登的分析並没有从準確的動力学观點出發。在实際分析中發生了欠缺理論基礎的根本問題。这方面作者持着不同的意見。本文中根據作者的理論指出了郝登分析法的癥結所在,並估計了人工降雨实驗法的实用價值之限度。波達闊夫曾建議暴雨逕流之一种計算法,引起了苏联学者的廣泛討論,很多人持有不同的意見。作者於文中指出了波氏等方法發生問題的症結所在;並用实例計算和作者的方法比較,說明了波氏法在实用中的準確限度。

Luota,a perfect karst synclinal catchment basin, is situated in a karst mountainous area in the west of Hunan, near Hubei, Sichuan and Guizhou provinces.

洛塔位于湘、鄂、川、黔诸省交界的湘西岩溶山区,为一完整的岩溶向斜汇水盆地。 盆地分布二迭系—下三迭统碳酸盐岩,厚881.4—1159.5米,可划分三个岩溶化层组和六个岩溶化层位,断裂 构造以北东向和北西向两组为主,对洞穴发育具明显的控制作用。据研究,除水的溶蚀是塑造各种岩溶形态经常起作用的因素外;水流侵蚀作用对雕塑某些岩溶形态如峡谷、溶缸及剑石等有时则占居主导地位。 洛塔洞穴具多层性,从上到下可划分四个洞穴 层,具层楼式洞穴特征。全区共有地下河51条,总 长82公里,分属屋檐洞、天锅潭、南部三个地下河 系。地下河管道横断面呈裂隙状、拱状及扁平状。 河道具多级跌水特点,水力坡降较陡,一般大于 30‰;降水与地下迳流有明显的相关关系,滞后时 间短。 由于岩溶发育的不均一性,区内岩溶水既存在 有集中的管道流,也存在分散的裂隙流,在久旱无 雨时,后者是前者的惟一补给源,也是具有抗旱意 义的重要水资源。

Analysis of a number of Sichuan's historical records such as the county annals, regional chronicles dating from 1488 to 1979 as well as the province's meteorological data discloses the fact that strong earthquakes were more or less related to the precipitations. prior to the occurrence of the earthquakes, there used to be an arid period which appeared to have zoned features in their spacial distributions. A discussion is held on the precipitation anomalv features before the 1976 Songpan-pingwu earthquake of...

Analysis of a number of Sichuan's historical records such as the county annals, regional chronicles dating from 1488 to 1979 as well as the province's meteorological data discloses the fact that strong earthquakes were more or less related to the precipitations. prior to the occurrence of the earthquakes, there used to be an arid period which appeared to have zoned features in their spacial distributions. A discussion is held on the precipitation anomalv features before the 1976 Songpan-pingwu earthquake of magnitude 7.2. It is believed that intensified study and observation of precipitation anomalies in the seismic hazardous areas when making mid-and long-term predictions would be helpful for ppople making the short-term and impending prediction of earthquakes.

本文根据1488年到1979年期间四川省大量县志,地方志等历史文献和现今气象资料的分析,发现降水与强震有一定的关系。震前表现为以干旱为主的特点,而且其空间分布有分区性的特征。同时对1976年松平7.2级地震前降水异常特征进行了讨论。认为今后在中长期预报的地震危险区,加强降水异常的观测和研究将有助于地震的短临预报。

 
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