查询词典 sampling distribution

In our studies,sludges composting was used as object, fluoranthene was on behalf of PAHs,and methods included dynamic sampling,room analysis,sludges' composting,leaching of soil column,and room culture were employed. The main contents include:the concentration and the distribution of PAHs in municipal sludges in Jiangsu Province,effects of composting on the concentration of PAHs in municipal sludges,the physicochemical properties of water dissolved organic matters in sludges before and after composting,effects of sludges composting and DOM on the desorption-leaching and eco-toxicity of FLT in polluted soil,and primary investigation of mechanism on same phenomena.

本论文以污泥堆肥为原料，以荧蒽(fluoranthene，FLT)为PAH的代表，采用动态取样、室内分析、污泥堆肥、土柱淋滤和室内培养等方法，系统研究了江苏城市污泥中PAHs的含量以及分布模式；堆肥对污泥中PAHs含量的影响；污泥堆肥前后水溶性有机物的理化性质特征变化；污泥堆肥对污染土壤中FLT解吸-淋滤、以及生态毒性的影响，并对有关现象进行了机理探讨。

On the sampling scale of 20 m, the road effects on different dominant populations were demonstrated in their spatial distribution patterns. There were significant increases in the biomass of Schima superba population, the number of individuals and biomass of Litsea rotundifolia population (P.05) along the parallel direction to road, respectively, while those of other populations had no significant difference.

优势物种20 m取样尺度的空间分布格局反映了不同种群对旅游路径干扰的不同响应，其中荷木的生物量、豺皮樟的个体数和生物量在远离旅游路径方向上均呈显著增长趋势，其他物种的个体数和生物量变化不显著。

The purpose of this study was to investigate the sampling distribution of the stress values yielded by Kruskal's nonmetric multidimensional scaling procedure.

本研究旨在调查非计量多向度量尺法之适合度统计数──压力系数的实徵抽样分配。

Multi-channel linear-phase nonuniform filter banks with proper sampling factors are designed which are applied to rows and columns of the input image, respectively, according to its power spectrum distribution. By this procedure, the image can be segmented nonuniformly in the frequency domain.

根据输入图像的频谱能量分布和实际应用的需要，设计具有合适采样因子的线性相位非均匀滤波器组并将其应用于对图像行、列的处理中，实现对整个图像按照频谱能量的高低进行灵活分割的过程。

The concept of entropy is applied to define an index on evaluating the abnormal condition. Prediagnosis of machine fault is made using the spectral structure distribution divergence as a criterion, in which the J divergence concept and multi-parameter evalution theory that describe the pseudo distances between the sampling signals and the corresponding standard faulty signals are used.

为此，基于信息熵提出了一个机组起停车过程转子运行状态的评估指标，并在此基础上，为实现机组运行故障早期预诊的目的，进而基于J散度及多参数评估理论，提出了信号频谱结构分布散度的概念，以描述实测信号与机组典型故障信号间的伪空间距离，从而实现了机组运行故障的初步预诊。

Three sampling sites were set along the river,the classification and distribution characteristic of the phytoplankton,zooplankton and zoobenthos were sampled and investigated in Mar,2005,respectively.

本文于2005年3月针对武江乐昌河段布设了三个监测断面，分别取样调查了浮游植物、浮游动物、底栖动物的种类和分布特性。

Nationwide sampling program is designed according to the resources distribution and coal-forming periods as well as coal rank and yield of coal in China, 305 coal samples were collected and determined by catalytic spectrophotometry combined with pyrohydrolysis.The geochemical mechanism of the concentration or depletion of iodine was discussed during the process of coalification,which including peat diagenesis and coal metamorphism.The contents of iodine in Chinese coals fall in the range of 0.04-39.51 mg/kg.

根据中国煤炭资源分布和成煤时代，兼顾煤的变质程度和煤炭产量分布，在全国范围内采集了305个煤样，采用高温热水解—催化分光光度法分析了煤中碘的含量，探讨了煤化作用(包括泥炭成岩作用和煤变质作用)过程中煤中碘富集或亏损的地球化学机制。

Important values of plant species in each layer were measured, and richness, evenness and diversity indices of species in each layer were calculated by means of many methods. The contiguous grid quadrats were applied to sampling for field data. The methods such as S^2√x ratio ratio t-test and five aggregate indices CI, M(superscript *, PAI, CA, K were used to analyze the spatial distribution pattern of H.

测定了各层次植物物种的重要值，采用多种方法计算各层次物种的丰富度指数、均匀度指数和多样性指数，采用相邻格子样方法取样，应用方差均值比的t检验和5种典型聚集度指标方法，研究了不同生境中花棒种群的空间分布格局。

This design is controls the cabinet based on 51 monolithic integratedcircuits power distribution the long-distance monitoring controllerdesign, the design project, needs to consider the connection at least64 nodes, and may to each pitch point real-time sampling data, theoutput control, as well as to the stand intelligent recognition.

本设计是基于51单片机的配电控制柜的远程监控控制器的设计，设计项目，需要考虑连接至少64个网络节点，并可以对每个节点实时地采样数据、输出控制，以及对站点的智能识别。

There was the same horizontal distribution for the abundance and biomass of ostracods in 9 sampling areas, and then the high abundance and biomass appeared in the east of Tai Lake (such as East Tai Lake, Eastern Coastal Belt and Gong Bay) because of the feeding and behavior habits of ostracods. Among the 9 areas, except for Meiliang Bay and Gong Bay, there was similar seasonal pattern for abundance and biomass in Tai Lake.

fabaeformis和塔尔薄丽星介的自身繁殖力是造成梅梁湖和贡湖中介形类丰度和生物量间存在差异的主要原因，但两湖区中介形类丰度和生物量在整个太湖中所占比重有限，所以不影响太湖总体介形类季节变化趋势，四个季节中介形类的丰度和生物量均值总体呈现出秋＞夏＞冬＞春的规律。

Effective local search tactics reaches local searchers when they are ready to buy - with every way that it is possible for them to buy from you.

有效的地方搜索策略达到当地的搜索，当他们准备购买-以各种方式，这是他们有可能从您那里进行购买。

The first two are periodic sentences for their beginnings; and the fifth and the last are also periodic sentences each for the embedding of a parenthetic structure.

1960年代中后期，当战后女权主义和当时的许多其他抗议运动在西欧和北美发展成某种势力时，性别的概念演绎成补充和延伸生物性别差异的概念。