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distribution     
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  分布
    Preliminary Study of the Temporal and Spatial Distribution of Atmospheric PCBs and PAHs in Guangzhou City and Nearby
    广州市及附近地区大气中多氯联苯和多环芳烃时空分布的初步研究
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    An Experimental Study on the Mechanism Controlling Trace Metal Distribution in Surface Water during Water/Colloid Interactoins
    地表水体中微量金属元素分布的水/胶体作用控制机理的实验研究
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    A Study on the Characteristics of Organic Composition and Distribution in the Rainwater of Guangzhou
    广州大气降雨中有机质组成分布特征研究
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    Study on the Distribution and Characteristics of Main Heavy Metals and Organic Pollutants of Jiaozhou Bay
    胶州湾主要重金属和有机污染物的分布及特征研究
短句来源
    Characteristics of Distribution and Transport of Heavy Metals in Multi-phase System of Natural Waters
    自然水体多相介质中重金属的分布及迁移转化特征
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  分配
    PHOSPHORUS DISTRIBUTION BETWEEN CaO-CaF_2-SiO_2 MELTS AND CARBON-SATURATED IRON
    磷在碳饱和的铁水与CaO-CaF_2-SiO_2渣之间的分配
短句来源
    Determination of Distribution Coefficents by Multiple Static Gas Extraction/Headspace GC Analysis
    多次静态气提/顶空气相色谱测定分配常数
短句来源
    Technology of Load Distribution on Total Pollutant Emission Control and Jts Economic Analysis
    总量控制负荷分配技术及经济分析
短句来源
    DISTRIBUTION METHOD STUDY OF DRAINAGED WATER POLLUTANT TOTAL AMOUNT IN NENJIANG RIVER
    嫩江水污染物排放总量分配方法研究
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    Study on the volume distribution effect of nitrogen and phosphorus removal of series oxidation ponds
    串联氧化塘中氮、磷去除的容积分配效应的研究
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  分布规律
    CHARACTERISTICS OF LOCAL CIRCULATIONAND AEROSOL DISTRIBUTION OVER BEIJING-TIANJIN AREA DURING AUTUMN AND WINTER
    秋冬季节京津渤地区局地环流特征及气溶胶分布规律
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    A STUDY ON POLLUTION CONDITION AND DISTRIBUTION LAW OF TETRAETHYL LEAD IN AMBIENT AIR OF BEIJING AND TIANJIN CITIES
    京津市区大气四乙基铅污染状况与分布规律的研究
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    Studies on the Law of Distribution of Mercury in Horizontal Direction in Sediment of Second Songhua River
    第二松花江底质中汞形态的水平分布规律的研究
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    CONTENTS AND DISTRIBUTION OF MO IN SOILS OF CHINA
    中国土壤中钼的含量与分布规律
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    Distribution and Characteristics of halohydrocarbons in Drinking Water in Wuhan
    武汉市饮用水中挥发性卤代烃分布规律与特性研究
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  分布特征
    A Study on the Characteristics of Organic Composition and Distribution in the Rainwater of Guangzhou
    广州大气降雨中有机质组成分布特征研究
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    Studies on the Characteristics of the Highway Heavy Metal Pollutants Distribution in Western Inner Mongolia
    内蒙古西部公路重金属分布特征研究
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    Study on PAHs Distribution Characteristics and Sorption Mechanism in Huangpu River
    多环芳烃在黄浦江水体的分布特征及吸附机理研究
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    CHARACTERISTICS OF SPECIES DISTRIBUTION AND TRANSFORMATION OF POLYMERIC ALUMINUM
    聚合铝形态分布特征及转化规律
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    Distribution characteristics of tritium in Qinghai Lake
    青海湖地区氚的分布特征
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  distribution
The Diagonal Distribution for the Invariant Measure of a Unitary Type Symmetric Space
      
In this paper we compute the Fourier transform of the diagonal distribution for $\phi_{*}\mu,$ relative to a compatible triangular decomposition of G, the complexification of U.
      
Scales of quasi-norms are defined for the coefficients of the expansion that characterize, via Littlewood-Paley-Stein theory, when a radial distribution belongs to a Triebel-Lizorkin or Besov space.
      
Approximation of Distribution Spaces by Means of Kernel Operators
      
In this note we prove that the Wigner distribution of an f ∈ L2(?n) cannot be supported by a set of finite measure in ?2n unless f=0.
      
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On the basis of field data,this Papar is intended to Present an overall picture about the tidal nature,duration,movement mode,current direction and velocity,distribution of the current fields and relationship between tidal level and current in the Yangtze Estuary and offshore areas.We discuss the inter action of the tidal characteristics with the changes of channel,thus providing dynamical basis for further reseach on the development processes and regulation of the Yangtxe Estuary.

本文根据大量实测资料对长江口潮流的性质、运动形式、历时、流速、流连,流场分布以及潮流和潮位的关系作了较全面的阐述,并探讨了潮流特性与河槽演变的相互作用,为研究长江口演变规律和整治措施提供了一个方面的动力依据。

BHC removal effeciency of the oxidation pond system at YL region averages 80% over a period of three years. Factors responsible for purification of BHC in oxidation ponds are discussed. Removal of BHC from water takes place by several routes: first, BHC degrades in alkaline medium but is relatively stable in acid environment. pH of the oxidation pond is found raised because of the fact that the consumption of free CO2 by photosynthesis of algae is faster than its liberation through respiratory process of the...

BHC removal effeciency of the oxidation pond system at YL region averages 80% over a period of three years. Factors responsible for purification of BHC in oxidation ponds are discussed. Removal of BHC from water takes place by several routes: first, BHC degrades in alkaline medium but is relatively stable in acid environment. pH of the oxidation pond is found raised because of the fact that the consumption of free CO2 by photosynthesis of algae is faster than its liberation through respiratory process of the heterotrophs. pH in oxidation ponds at YL region varies from 7.0 to 10.3. Thus, higher pH values due to ecological factor provide a favorable condition for efficient removal of BHC. Secondly, BHC accumulates in phytoplankton and zooplankton in the oxidation ponds. Studies show that accumulation factor of Scenedismus oblq. and Moina was 213 and 32, respectively. The concentration of BHC adsorbed from water depends upon both the concentration of BHC in water and the biomass of algae and zooplankton. Hence, algae and zooplankton as "carriers" play an important role in transporting BHC from water to bottom sediments. Thirdly, BHCWas degraded under anaerobic condition. Bottom mud of oxidation ponds is good in adsorbing BHC. The distribution coefficient of BHC is 80. Rapid degradation of BHC has been observed in sediments of oxidation ponds. Under laboratory conditions BHC degradation rate can be accelerated by repeated additions of BHC into the bottom mud. The maximum rate attained is 3.8mg/hr/kg mud. Owing to anaerobic degradation, BHC content in the sediment of oxidation ponds has not increased over a period of three years.

本文研究了氧化塘系统中六六六的转移和归趋。实验表明,由于氧化塘中藻类光合作用大量消耗游离二氧化碳而引起pH的上升;浮游动植物积累及通过它们转移和带入底泥;以及在底泥中的厌氧降解是六六六在氧化塘中被净化的主要原因。六六六在鱼体中积累和释放的动力学研究,证明六六六在鱼体的残留水平为水和体脂间的分配平衡所决定,水中六六六可以在鳃的气体交换过程中迅速进入体内。当水中六六六浓度低时,体内的残留又可释放到水中,其释放速率与温度有密切关系。

Based upon the geochemistry theory and the daturas from our field observation on the transportation of heavy metals in aguatic environment, we suggested that the distribution ratio of heavy metals in different phases of sediment should be used as an indicator in evaluating the degree of heavy metals pollution in natural aquatic environment.Heavy metals in unpoilution aquatic environment were mainly distributed in the Crystalline phases of the sediment, while in the pollution environment they were chiefly...

Based upon the geochemistry theory and the daturas from our field observation on the transportation of heavy metals in aguatic environment, we suggested that the distribution ratio of heavy metals in different phases of sediment should be used as an indicator in evaluating the degree of heavy metals pollution in natural aquatic environment.Heavy metals in unpoilution aquatic environment were mainly distributed in the Crystalline phases of the sediment, while in the pollution environment they were chiefly distributed in acid soluble and organic phases of the sediment.sediment index q may be defined as fellowWe have studied and analysed the distribution ratio of heavy metals in different phases of sediment of the Yangtze River estuary and the Yang River zone water of Guan Ting Resource, and made a comparative analysis on the datums of invcatigction on Amazon River yukon River as well as How River. As a result, the relibility of the indicator got confirmed.

根据地球化学理论,综合分析了重金属转移过程的现场调查数据,提出天然水环境中重金属在底质各相间的分配比作为水域环境质量的指标.底质指标的关系式:q=△F/Γ~·=F-F~·/Γ~·我们对长江口海域和官厅水系洋河段重金属在底质各相间的分配比进行了分析研究,并比较了亚马逊河、育空河和美国的How河的调查数据.验证了这一指标的可靠性.

 
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