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调查取样
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  investigation and sampling
     Based on the investigation and sampling analysis,the results showed that the tendency of petrification and desertification in soil surface layer was remarkable in Hainan's pineapple orchards.
     通过调查取样分析 ,结果表明 :海南菠萝园土壤表层石漠化趋势明显 ;
短句来源
     In field investigation and sampling,the difference between branches and positions should be taken into consideration and the sampling method should be scientific.
     因此认为,4月份是防治松突圆蚧的重要时期,在野外调查取样中,应充分考虑枝条及部位间的差异,确定科学的取样方法。
短句来源
  “调查取样”译为未确定词的双语例句
     We sampled wild birds for the Avian Influenza Virus (AIV)(H5, H7 and H9) survey in the AI infected regions of Guangdong during its eruptive period in early 2004. Seventy-six samples of blood serum, 125 swab samples and 21 organic samples were collected.
     2004年初禽流感疫情期间,针对广东省疫点地区开展了野生鸟类禽流感病毒(H5、H7、H9)调查取样工作,共获得血样76份、拭子125份、器官样21份。
短句来源
     Study of the Method for Determining Sampling Number for Root Investigation
     根系调查取样点数确定方法的研究
短句来源
     Two surveys of macro-benthos on Xiangshan Bay were carried out on August and December 2001.There are 43 species mainly belonging to 4 groups in total 8 monitoring points,including 12 species of polychaetes(28%),16 species of mollusks(37%),6 species of Crustacea(14%),5 species of Echinodermata(12%).
     2001年8月和2001年12月对象山港8个站进行了大型底栖动物两个航次的调查取样。 发现4大类底栖动物43种,其中多毛类12种(占28%)、软体动物16种(占37%)、甲壳动物6种(占14%)、棘皮动物5种(占12%)。
短句来源
     On the basis of ascertaining the distribution pattern parameters of nymph of S. fur-cifera, according to Kuno (1969)'s, Green (1970)'s and Iwao (1975)'s sequential sampling formulas , this paper made respective sequential sampling diagrams and tables, with a view to providing reference for field sampling and control work.
     本文报道了在明确白背飞虱若虫空间分布型参数的基础上,根据Kuno(1969)Green(1970)和Iwao(1975)的序贯抽样公式,分别制作了序贯抽样图和表,供田间调查取样和防治工作的参考。
短句来源
     First, first hand data of feature of natural condition, the kinds and growing states of ornamental treeshas been grasped by investigating and recording, by analysing the soil and by collecting natural data inKelamayi.
     首先通过对克拉玛依及邻近城市现有园林树木的种类、生长状况及其它有关指标现状进行实地调查记录,对克拉玛依土壤剖面调查取样分析,同时收集克拉玛依的自然条件资料并进行补充调查,较系统地掌握了克拉玛依自然条件特点及园林树木种类及生长状况的第一性资料。
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  相似匹配句对
     INVESTIGATION
     调查
短句来源
     A COMPARATIVE STUDY OF THREE METHODS FOR SAMPLING THE POPULATIONS OF PLANTS INJURED BY RICE STEM BORERS
     螟害调查取样方法的比较研究
短句来源
     A Comprehensive Report of Overseas Sampling Techniques on Groundwater Contamination Investigation
     国外地下水污染调查取样技术综述
短句来源
     Emolument Investigation
     薪酬调查
短句来源
     Multi-Sampling Effect
     多次取样效应
短句来源
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  investigation and sampling
Characterizing critical layers is generally accomplished using investigation and sampling methods that produce higher quality data.
      
CIA staff will also coordinate and oversee field investigation and sampling activities.
      
Site characterization and screening are generally performed using investigation and sampling methods that produce lower quality data.
      
Site investigation and sampling activities led to the development of site reclamation engineering plans and specifications.
      
The map will be provided in a final site investigation and sampling and analysis report.
      


In connection with experiments on the control of the rice stem borer, aseries of observations were conducted in 1949 to 1952 in Canton to determinethe form of the distribution of the moth, the egg-mass and the larval popula-tions of this species. It was found that the moth and egg-mass populations inrice seed-beds are in essential agreement with the random distribution of thePoisson series. The larval population in spring-crop fields apparently conformsto the contagious and the negative binomial distributions....

In connection with experiments on the control of the rice stem borer, aseries of observations were conducted in 1949 to 1952 in Canton to determinethe form of the distribution of the moth, the egg-mass and the larval popula-tions of this species. It was found that the moth and egg-mass populations inrice seed-beds are in essential agreement with the random distribution of thePoisson series. The larval population in spring-crop fields apparently conformsto the contagious and the negative binomial distributions. The larval population during hibernation period appears to be neither of the random distribution norof the contagious type but agrees with the negative binomial distribution. The population distribution of the injured stems, characterized by the ap-pearance of "dead-hearts" and "white ears" was also studied. The "dead-hearts"popolation in autumn-crop fields conforms with the contagious and the negativebinomial distribution. The distribution of the "white ears" is not at random. It iseither in essential agreement with the contagious or with the negative binomialdistribution, depending on the size of the sampling unit. Based on the form of population distribution the questions of sampling tech-nique, the design of field experiments, the transformation of data for statisticalanalysis, as well as the habits and control of insects have been discussed inrelation to the rice stem borer. Since the populations of larvae and "whiteears" differ significantly from the random distribution, a new technique forsampling has been proposed. It is hoped that this may be useful in the investi-gations on the relative effectiveness of control operations and for census purposes.

(一)本文就昆虫常见的数种集团分布:潘松分布、核心分布和负二项式分布的公式、性质和例子等略加讨论介绍。 (二)我们在广州附近对三化螟各时期和白穗、枯心苗的田间分布型式作了初步的调查,所得结果如下: 1.螟蛾和卵块在秧田上是随机分布的。 2.幼虫在本田分布不随机,符合核心分布和负二项式分布。 3.白穗在田间的分布不随机,1×1丛、2×2丛、……6×6丛各种取样单位型样本均符合负二项式分布,4×4丛、5×5丛和6×6丛三种取样单位型样本则更符合核心分布。 4.稻遗株内越冬幼虫分布不随机,亦不符合核心分布,但符合负二项式分布。 5.晚造本田枯心苗田间分布不随机,符合核心分布和负二项式分布。 (三)本文就昆虫集团分布型式的调查在实用上的意义,联系到三化螟来讨论,我们论及与虫害调查取样技术、田间试验设计、统计代换方法、昆虫生活习性和害虫防治等各方面的关系;其中取样技术方面,我们举出针对三化螟幼虫在本田和白穗不随机分布的取样新方法的尝试,希望对今后螟害调查工作有所帮助。 (四)最后,我们就一些昆虫分布的特殊问题加以论列,像密度对分布型式的影响,混合集团和环境因素的影响于昆虫集团分布类型等,就中说明了密度过大过...

(一)本文就昆虫常见的数种集团分布:潘松分布、核心分布和负二项式分布的公式、性质和例子等略加讨论介绍。 (二)我们在广州附近对三化螟各时期和白穗、枯心苗的田间分布型式作了初步的调查,所得结果如下: 1.螟蛾和卵块在秧田上是随机分布的。 2.幼虫在本田分布不随机,符合核心分布和负二项式分布。 3.白穗在田间的分布不随机,1×1丛、2×2丛、……6×6丛各种取样单位型样本均符合负二项式分布,4×4丛、5×5丛和6×6丛三种取样单位型样本则更符合核心分布。 4.稻遗株内越冬幼虫分布不随机,亦不符合核心分布,但符合负二项式分布。 5.晚造本田枯心苗田间分布不随机,符合核心分布和负二项式分布。 (三)本文就昆虫集团分布型式的调查在实用上的意义,联系到三化螟来讨论,我们论及与虫害调查取样技术、田间试验设计、统计代换方法、昆虫生活习性和害虫防治等各方面的关系;其中取样技术方面,我们举出针对三化螟幼虫在本田和白穗不随机分布的取样新方法的尝试,希望对今后螟害调查工作有所帮助。 (四)最后,我们就一些昆虫分布的特殊问题加以论列,像密度对分布型式的影响,混合集团和环境因素的影响于昆虫集团分布类型等,就中说明了密度过大过 小时了解分布型式成为不必要的,因为极度的不均衡会回复为均衡状态的。

An investigation was made in the field at Canton,Tung Shing,Fang Shang,Kwangtung from 1957 to 1958 to determine the degree of accuracy of threemethods for sampling the populations of plants injured by rice stem borers.It was found that under the conditions of the different densities of cultivatedplants,different degrees of insect damage,and different species of rice stemborers,the results obtained with the parallel line sampling method appeared tobe more accurate than with other two methods.Test of significance...

An investigation was made in the field at Canton,Tung Shing,Fang Shang,Kwangtung from 1957 to 1958 to determine the degree of accuracy of threemethods for sampling the populations of plants injured by rice stem borers.It was found that under the conditions of the different densities of cultivatedplants,different degrees of insect damage,and different species of rice stemborers,the results obtained with the parallel line sampling method appeared tobe more accurate than with other two methods.Test of significance of thesedata,the average of value was 0.6639.Statistical examination also showed thattwo hundred samples per field gave sufficiently high degree of accuracy.

对几种螟害调查取样方法进行比较试验,并研究必要的样本数目。在不同栽植密度、不同螟害种类和螟害程度的田块中,一致麦示平行线取样法螟害率平均数的代表性误差最小,平均仅0.1,变异系数亦最小,平均23.56%,显著性测定结果:t 值亦最小,平均为0.6639,与对照的差异最小,可见平行线取样方法具有最大的准确程度。对角线和棋盘式取样法均显著差于平行线取样法,这两种取样法之间,基本上没有明显的差别。将样本数由240丛减少至120丛的平行线取样结果:240丛表现了明显的准确度;120丛在经验值螟害率0.8%以下的密度内,显现得很不准确;而在螟害率0.8%以上的密度尚勉强可用。根据大数定律原理,从理论上算出192丛即能满足所要求的准确度。根据试验结果,认为可以把目前螟害调查办法中的样本数240丛改为200丛。

Weed communities are classified with the quantitative analysis so as to avoid some possible subjective factors in the classification, description and distribution of weed communities; therefore, it is possible in this way to make the study comprehensively, objectively and quantitatively.In summer crop field; of river valleys and hilly lands of Anhui Province, 74 sampling fields were chosen to take 10 sampling plots, i.e. 10 plots were randomly selected from these fields. Transformed into overall values, the...

Weed communities are classified with the quantitative analysis so as to avoid some possible subjective factors in the classification, description and distribution of weed communities; therefore, it is possible in this way to make the study comprehensively, objectively and quantitatively.In summer crop field; of river valleys and hilly lands of Anhui Province, 74 sampling fields were chosen to take 10 sampling plots, i.e. 10 plots were randomly selected from these fields. Transformed into overall values, the data collected by eyesight of weed damages to crops in seven scales were analysed with the fuzzy cluster. On the basis of ecological factors and community features of the sampling sites, the degree of confidence was selected and the sampling sites were classified into various clusters. The result showed that the distribution of weed communities in rape and wheat fields of the said areas is restrictly influenced by crop rotation systems and soil types. The distribution pattern of weed communities was described as follows: the Cerasltum viscosum+Veronica persica association is in the grey muddy soil dry lands of the rotation of wheat (or rape) and cotton; the Galiurn aparine var. tenerum+Avena fatua association, in the yellow-red earth or yellow-brown earth dry lands of the rotation of wheat and sweet potato (or soybean or cotton); the Alopecurus aequalis association, in the rice soil fields of the rotation of rape and rice. In order to evaluate the weed damage degree to a crop in a type of weed community, the overall weed damage index (OWDI) was first developed. As a result, the worst weeds in the fields of different crop rotation systems and soil types were determined quantitatively in accordance with this index. Finally, the strategy for integrated control of the worst weeds was suggested.The formula of the overall value and the overall weed damage index (OWDI) isOverall Value=∑(Number of a scale's·Value of the scale occupying fields)/50OWDI=∑(Number of a seale's occuppying. Value of the scale fields)/Total number of fields of·Value of the highest weed community cluster scale

作者创用了七级目测调查取样,进行数量分析的方法,对夏收作物田杂草群落进行分类研究,揭示了安徽沿江圩丘农区夏收作物田杂草群落的分布规律主要受土壤类型和轮作制度制约。看麦娘杂草群落分布于水稻土田,猪殃殃,野燕麦杂草群落分布于丘岗区旱地,卷耳、婆婆纳杂草群落分布于灰潮土旱地。首次提出综合草害指数,用以评定杂草群落类型中每种杂草的危害性,从而,提出了不同土壤类型和轮作制度的田块中恶性杂草的定量化指标与防除策略。

 
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