查询词典 sampling distribution

The distribution of gas-solid two-phase flow in the axial guide vane cyclone tube was measured with five-orifice pitot tube and by means of isokinetic sampling method.

为研究颗粒分离机理，提高分离性能，采用五孔球探针测试仪及等动采样法对轴流导叶式旋风管内气固两相流速度与压力分布进行了测量，并分别对不同导流锥和排尘结构参数下的纯气流流场及颗粒浓度场分布进行了对比分析。

Within methods of this class, tracking is solved by sequential building posterior probability distribution of target state, and sampling based Monte Carlo computing acts as one of the key technologies.

这类方法通过序贯构造目标状态的后验概率分布来求解跟踪问题，而基于抽样的蒙特卡罗计算方法则是其中关键的统计计算技术。

Content includes probability, statistical distribution, sampling, estimation, hypothesis testing, regression, multiple regression, and random process.

主要内容包括：概率、统计分布、抽样、估计，假设检验、回归、多元回归和随机过程等。

The content includes: sources, collection and tabulation of data, description of characteristic of data distribution, probability, sampling method, regression and correlation, hypothesis testing, time series and index number.

主要内容包括：统计数据的收集与整理，数据分布特征的描述，抽样的基本理论与方法，相关分析与回归分析，假设检验的基本理论与方法，时间数列分析，统计指数。

The quadrat sampling technique is mostly used in plant ecology to study the distribution and abundance of species in plant communities.

其内部的生物体被标记，样方抽样技术多用于植物生态学领域，用来研究某一植物群落中物种的分布及其含量的多少。

This study was conducted in Taiyuan sewage irrigation area from 1997 to 2000.The research process included field investigation, sampling, lab test, model experiment and data analysis by geo-statistics method. The source, affecting factors, content condition, transference regularity, spatial distribution of heavy metal in sewage irrigation area were studied. The results showed that mercury, cadmium and lead contents of soil were higher than soil background value.

本文以在中国北方具有代表性的太原污水灌溉区为研究对象，污灌区位于山西省中部的太原盆地北端，总面积2.7万公顷，在研究区共布土样点49个，粮食作物样33个，水样点26个，大气样点6个，通过实地调查取样监测和室内模拟试验，采用地统计学和多元统计等方法，系统研究了污灌区土壤-作物系统中重金属Hg、Cd、Pb的来源、含量状况、累积影响因素、空间分布特征、迁移转化规律、重金属环境容量的区域分异与应用等内容。

Even-aged stands of Robinia pseudoacacia on slope lands facing south and north were selected as sampling plots for root distribution investigation.

本研究选择阳坡和阴坡不同立地上年龄一致的刺槐林调查了根系分布特征。

In chapter 10, we propose the random weighting approximation method for distribution of sample mean under simple random sampling in one-dimensional finite population.

第十章 将随机加权法首次应用到简单随机抽样方案下的样本均值分布逼近问题中，从数字特征角度说明了随机加权方法在抽样理论中的可用性，从而拓广了随机加权法的应用范围。

This paper introduces the distribution of sampling points and water sample analysis method and analyzes...

介绍了水质采样点的分布情况和水样分析方法。

Now we know that the sampling distribution of our estimate is centered around the true parameter.

现在我们知道估计值的样本分布是以真实参数为中心的。

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！