助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   variability and distribution 的翻译结果: 查询用时:0.01秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

variability and distribution
相关语句
  变异性及分布
     Spatial Variability and Distribution Pattern of Soil nitrogen, phosphorus and potassium in Vegetable field in Typical Area of Taihu Lake Watershed
     太湖流域典型蔬菜地土壤氮磷钾养分空间变异性及分布规律
短句来源
     Spatial Variability and Distribution Pattern of Arsenic, Chromium and Zinc Contents in the Soils in Gongzhuling Area
     吉林公主岭土壤中砷、铬和锌含量的空间变异性及分布规律研究
短句来源
  “variability and distribution”译为未确定词的双语例句
     Large fluctuations in effective population size usually translate into changes in the level of genetic variability and distribution of allele frequencies.
     利用微卫星标记确定有效种群大小、检测有效种群大小的波动可以促使我们正确理解种群遗传结构动态和种群进化过程 ;
短句来源
     Spatial Variability and Distribution of Nitrate Content of Shallow Groundwater in Huang-Huai-Hai Plain
     黄淮海平原浅层地下水中NO_3-N含量的空间变异与分布特征
短句来源
     Spatial variability and distribution of soil nutrient contents along different environmental gradients of Yilong lake shore
     异龙湖湖滨带不同环境梯度下土壤养分空间变异性
短句来源
     Based on drawing practise, the main conclusion as following:(1)On the basis of quantitative soil classification system, The soil automatism cartography adopted geostatistics was feasible, and it enable represent it’s advantage especially in a large scale soil map, because it enable reflect exactly spatial variability and distribution characteristics of different soil in small scope.
     根据制图实践,主要得出以下结论:(1)以定量化的土壤分类系统为依据,采用地统计学方法进行土壤自动制图是切实可行的,尤其是在大比例尺土壤制图中,更能体现出它的优越性,它能尽可能准确的反映小尺度范围内不同土壤特性的空间变异特征及其分布规律。
短句来源
     The sensitivity of the average one-dimensional consolidation degree of double-layered saturated soil foundation with vertical consolidation coefficient of Gamma distribution,logarithmic normal distribution and Beta distribution is studied by using the two-point probability estimation method. The influences of variability and distribution types of consolidation coefficient on the average one-dimensional consolidation degree are analyzed.
     针对竖向固结系数可能服从Gamma分布、对数正态分布或Beta分布,利用两点概率估计理论进行双层地基一维固结平均固结度的敏感性分析,研究了竖向固结系数变异性和分布概型对平均固结度的影响,为进一步开展多层地基固结的可靠性分析打下了基础。
短句来源
更多       
  相似匹配句对
     and the third is variability.
     三、等级性。
短句来源
     Irregularities in ENSO Variability
     ENSO变率的不规则性
短句来源
     RAINFALL VARIABILITY OF CHINA
     我国之雨量变率
短句来源
     Referentiality and Syntactic Variability
     指称意义与句法变化
短句来源
     The frequencydistributions and the variability of transfer factors are presented.
     给出转移系数的频数分布及变异性。
短句来源
查询“variability and distribution”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  variability and distribution
This paper is focused on the applicability of remotely sensed data of different platforms to determine spatial variability and distribution of soil mositure on a local scale.
      
Along with averages, rainfall variability and distribution are important climatological information.
      
On the relations of the rainfall variability and distribution with the mean rainfall over India
      
miamiensis Myers (1933) is discussed concerning its variability and distribution.
      
Information on spatial variability and distribution patterns of organisms in coral reef environments is necessary to evaluate the increasing anthropogenic disturbance of marine environments (Richmond 1993; Wilkinson 1993; Dayton 1994).
      
更多          


The spatial variability and distribution of NO 3-N in shallow groundwater in Huang Huai Hai Plain were studied by means of GPS and GIS technology The results indicated that it did not show a spatial structure at the sampling density of 35~50 km in shallow groundwater The spatial variability of NO 3-N content belonged to high intensity The area of NO 3-N concentration over 20 mg·L -1 was about 10% of the whole Huang Huai Hai Plain, and was mainly distributed in the zone from Tianjin...

The spatial variability and distribution of NO 3-N in shallow groundwater in Huang Huai Hai Plain were studied by means of GPS and GIS technology The results indicated that it did not show a spatial structure at the sampling density of 35~50 km in shallow groundwater The spatial variability of NO 3-N content belonged to high intensity The area of NO 3-N concentration over 20 mg·L -1 was about 10% of the whole Huang Huai Hai Plain, and was mainly distributed in the zone from Tianjin to Jinan and Xincai, Fuyang and Bengbu in the Huaihe River Basin The area of NO 3-N content in the range of 10-20 mg·L -1 was distributed in the region from Xuzhou to Lianyungang in Jiangsu Province and Weifang,in Shandong Provence, which was about 11 5% of the Huang Huai Hai Plain The NO 3-N concentration in the shallow groundwater was related to the groundwater depth The NO 3-N concentration was usually over 20 mg·L -1 when the groundwater level was less 3 m, while the NO 3-N content was less 10 mg·L -1 when the groundwater level was over 10 m It implied that the affecting depth of the nitrate leaching on the groundwater was less than 10 m These results were beneficial to making decision for increasing water and fertilizer utilization efficiency and to the sustaining agricultural development in Huang Huai Hai Plain

通过GPS定位取样分析和GIS处理 ,研究了黄淮海平原浅层地下水中NO3-N含量的空间变异和分布特征。结果表明 ,黄淮海平原浅层地下水中NO3-N含量在 35~ 5 0km的取样密度下 ,没有半方差结构 ,各取样点之间变异性较大 ;黄淮海平原有 10 %的面积浅层地下水中NO3-N含量超过 2 0mg·L-1,主要分布在天津至济南一线和淮河流域的新蔡、阜阳和蚌埠一带。徐州至连云港一带的苏北地区及山东的潍坊地区 ,浅层地下水中的NO3-N含量一般在 10~ 2 0mg·L-1之间 ,约占黄淮海平原总面积的 11 5 %。浅层地下水中NO3-N的含量与地下水埋深密切相关 ,NO3-N含量超过 2 0mg·L-1的地下水埋深一般在 3m以上 ,地下水埋深在 10m以下时 ,其中的NO3-N含量均不超过 10mg·L-1。这表明 ,目前通过土壤NO3-N的淋失对该区地下水中NO3-N含量影响深度一般不超过 10m。此项研究结果对于黄淮海平原持续发展 ,制定优化的高效水肥管理措施和方案有一定指导意义。

Microsatellites are simple tandemly repeated sequence motifs consisting of repeat units of 1_6 bp in length. As genetic markers, they are widely dispersed in eukaryotic genomes. The advantages of microsatellites include high polymorphism, high abundance, codominance, selective neutrality and the possibility of automated detection and scoring. This review emphasizes the applications of microsatellites in population biology, especially in plant populations. The variability of microsatellite loci is often so high...

Microsatellites are simple tandemly repeated sequence motifs consisting of repeat units of 1_6 bp in length. As genetic markers, they are widely dispersed in eukaryotic genomes. The advantages of microsatellites include high polymorphism, high abundance, codominance, selective neutrality and the possibility of automated detection and scoring. This review emphasizes the applications of microsatellites in population biology, especially in plant populations. The variability of microsatellite loci is often so high that, even with a small number of loci and a large number of individuals, most individuals have unique multilocus genotypes. It is therefore possible to address issues such as discrimination, relationships, structure, relatedness and classification or hierarchy, not only at the individual but also at the population level. Individual identification is critical for molecular studies of clonal plants. Although an efficient approach for individual identification, microsatellites have not so far been widely used in the investigation of clonal structure of plant populations. Several studies on the bur oak populations were cited to show the availability of microsatellites on parentage analyses and processes of gene flow within and among populations. The applications of microsatellites at the population level include genetic structure, effective population size and phylogenetic reconstruction. Genetic structure and diversity have been studied on many species, which include grasses, flowers and trees using microsatellites. Large fluctuations in effective population size usually translate into changes in the level of genetic variability and distribution of allele frequencies. As microsatellite markers can provide nearly infinite loci and can be amplified from even partly degraded DNA, temporal change of genetic structure due to population size can thus be directly accessed. The contribution made by microsatellite markers to infer phylogenetic relationships among populations has been limited. We also discussed the correct use of the different classes of marker.

微卫星是以几个碱基 (一般为 1~ 6个 )为重复单位组成的简单的串联重复序列 ,具有丰度高、多态性高、共显性标记、选择中性、可自动检测等优点。本文着重介绍了微卫星在种群生物学研究中的应用。微卫星位点可以提供具高分辨率的遗传信息 ,这一特点使微卫星既适合于个体水平上的研究 ,又适合于种群水平上的研究。在个体水平上包括个体识别、交配系统和亲本分析、基因流等研究。微卫星是常用的个体识别手段 ,但在克隆植物遗传结构研究方面的应用还很有限 ;微卫星提高了交配系统和亲本分析、基因流等研究的准确性。在种群水平上微卫星可用于遗传结构、有效种群大小、种群的系统发育重建等研究。微卫星在很多物种 (包括珍稀物种 )的遗传结构研究中得到应用 ;利用微卫星标记确定有效种群大小、检测有效种群大小的波动可以促使我们正确理解种群遗传结构动态和种群进化过程 ;微卫星在种群的系统发育重建研究方面有很大的应用潜力。然而微卫星并不是研究所有问题的唯一选择。文中还讨论了在实际工作中应如何正确利用分子标记等问题

The Zhuanyaogou River watershed is located in the central-western part of Hequ County,Shanxi Province,i.e.,39°11′06″~39°13′47″N,111°12′03″~111°19′28″E,it is a first-grade tributary of the Yellow River,its catchment area is 28.7 km 2,and its gully density is as high as 6.2 km/km 2. The climate here belongs to the warm-temperate continental monsoon climate,the annual air temperature is 8.8℃,and the annual precipitation and evaporation are 447.5 mm and 1 913.7 mm respectively. The natural vegetation is sparse...

The Zhuanyaogou River watershed is located in the central-western part of Hequ County,Shanxi Province,i.e.,39°11′06″~39°13′47″N,111°12′03″~111°19′28″E,it is a first-grade tributary of the Yellow River,its catchment area is 28.7 km 2,and its gully density is as high as 6.2 km/km 2. The climate here belongs to the warm-temperate continental monsoon climate,the annual air temperature is 8.8℃,and the annual precipitation and evaporation are 447.5 mm and 1 913.7 mm respectively. The natural vegetation is sparse and the soil erosion is serious in the region. In this paper,the spatial variability and distribution characteristics of soil carbonate carbon in the watershed are researched by analyzing the soil samples sampled from 62 sampling sites at 9 soil layers in the watershed and by using geostatistical method. The results show that the spatial variability of carbonate carbon content in soil is in a mid-intensity except that in the soil layer of 80~100 cm in depth,and it is caused by the spatial self-correlative factors. The carbonate carbon content in soil is the highest on the top of hills and the lowest in the gullies in the same soil layer. Moreover,the change of the carbonate carbon content in soil at these two geographical locations is smaller than that on the slopes of hills. The illuviation depth of carbonate carbon in soil is different from the different geographical locations. Taking the illuviation layer as the boundary,the carbonate carbon content is lower in topsoil than that under it in the gullies;it is similar in topsoil and under it on the slopes;and it is higher in topsoil than that under it on the top of hills.

根据对砖窑沟流域 6 2个点 9个层次的取样分析数据 ,运用地统计学方法探讨了流域土壤碳酸盐碳的空间变异和分布特征。结果表明 :除 80~ 10 0cm层外 ,其余各层均属中等程度的变异 ,该变异主要是由空间自相关因素引起的。同层次内 ,梁峁顶部土壤碳酸盐碳含量最高 ,沟坝地的含量最低 ;梁峁顶部和沟坝地较梁峁坡地碳酸盐碳含量变化小。地貌部位不同 ,碳酸盐碳在剖面上的淀积深度不同。以淀积层为界 ,沟坝地上部比下部的碳酸盐碳含量略低 ,梁峁坡地上部与下部的碳酸盐碳含量大体相当 ,而梁峁顶部上部比下部的碳酸盐碳含量略高。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关variability and distribution的内容
在知识搜索中查有关variability and distribution的内容
在数字搜索中查有关variability and distribution的内容
在概念知识元中查有关variability and distribution的内容
在学术趋势中查有关variability and distribution的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社