查询词典 representative sample

Fisher criterion assumes that each sample has a unimodal,symmetric distribution for each class.However,when the training sample size is large and their distributions are multimodal or skewed,the definition of classical Fisher criterion can not correctly reflect the distribution of the data in the sample space,in that case,the sets of discriminant vectors are not optimal virtually.

Fisher准则函数的前提条件就是假设每类样本数据满足单峰高斯分布，即各类样本在模式空间的分布近似椭球状，但是当训练样本数据较多且呈多峰分布时，传统的Fisher准则函数并不能准确反映样本数据的分布，显然基于Fisher准则函数的线性判别分析得到的最优判别矢量集也不是最优的。

The current density of the un-pretreated sample attains 1.2mA/cm2,but the polished sample and polished acidly washed sample attain 3.2 and 2.75mA/cm2,respectively,at the electric field of 6.25V/μm.

在场强为6.25V/μm时，衬底未处理样品的电流密度为1.2mA/cm2，而衬底抛光的样品和衬底抛光又酸洗的样品的电流密度分别达到3.2和2.75mA/cm2。

Investigation was carried on tweenty-four sample stands of four districts in Nanning City, including (1) college area: the Subtropical Conservative Rainforest, the omni-tree Woods, the Pinus massoniana Woods in Guangxi Ethnic College, the TaoLi Garden, the Centre Garden, the Nurture Garden, the sod Garden, the Eucalptus woods, the Osmanthus fragrans Woods and the Livistona chinensis green Belt in Guangxi University;(2) residence: the Swiss Villa"s two greening sample standsand the Wenhua Villa"s three greening sample stands;(3) commercial streets: theXingming Road ,whose prime street tree is Dracontomelon duperreanum , the Yuanhu Road, whose prime street tree is Saraca chinensis Merr.et Chum, the Xingzhu Road, whose prime street tree is Artocarpus nitidus Tree, subsp.

住宅区：文华园的3个样地和瑞士花园的2个样地。主要交通干道：大学路的3个样地和民族大道的2个样地。商业区：以人面子为主要街道树的新民路，以红桂木为主要行道树的新竹路，以中国无忧花为主要行道树的圆湖路。调查结果表明：在南宁市四个功能区的24个绿化样地，主要的绿化乔木有 45种，前 10种依次是：人面子、假摈梆、垂叶榕、桂花、扁桃、蒲葵、阴香、马尾松、芒果和中国无忧花，主要的绿化灌木有24种，前8种依次是九里香、尖叶木犀揽、黄叶假连翘、扶桑、花叶朱蕉、紫蒲、短穗鱼尾葵和大花美人蕉，这些植物基本上代表了本市绿化植物的主体。

First, the least sample size for high reliability aviatic mechanical products in common experiment is calculated. And then the reason for performing small sample and extreme small sample test is discussed.

首先阐述了航空领域机械类高可靠性产品在常规可靠性试验时所需要最小子样数的确定方法，接着阐述了被迫采用小子样、极小子样可靠性试验的原因。

The matrix effect was corrected by theoretical a influence coefficient method. Moreover, flux dilution rate and fusion time were discussed. The mass ratio of sample to flux was chosen as 1 to 15. The fusion time of sample closen was 15 min. The concentration of the sample in the flux was proved to be suitable for the XRF determination of both components of macro and micro amount.

对稀释比、熔样时间等进行了探讨，结果表明，试样和熔剂的质量比以1：15、熔样时间以15 min为好，所得试样在熔剂中的分散度适当，可同时适合试样中高、低含量组分的测定。

My company is a company with 10 years experience in garment production and sales of foreign-owned enterprises, with export business and domestic business, export business is mainly well-known brands in Europe and America to take sample design, sample processing and product development, production of the brand has Renee, Lapagayo, Camel, BadBoys, Fidelia, Jeep, 1/2Pollice and so on, high-quality products are exported to Europe and the United States, Japan and other countries, because of the rapid expansion of domestic market demand, companies with relatively adequate internal resources, the company is committed to the development of a number of brand awareness in progress together with other clothing, we also opened a factory specializing in the production of underwear, annual output of more than one hundred million pieces, in order to meet the needs of the market, and with the demand with various partners to achieve benefit, welcome guests around the sample to map the design and processing business to discuss.

我公司是一家拥有10多年服装生产销售经验外商独资企业，设有外销事业部和内销事业部，外销事业部主要是承接欧美知名品牌来样设计、来样加工和产品开发，生产的品牌有Renee、 Lapagayo、Camel、BadBoys、Fidelia、Jeep，1/2Pollice等，高质的产品远销欧美、日本等国家，由于国内市场需求迅速扩大，公司内部资源较为充足，公司致力发展宣传多项品牌，在与其他服装共同进步的同时，我们又开设了专业生产内裤的加工厂，年产量在一佰万件以上，以此来满足市场的需求，并同求与各合作伙伴达到共利，欢迎各地嘉宾来样、来图设计和加工业务洽谈。

At the same time the company and the Shanghai International Wool Bureau, to develop a sample product gilling machine and sample product spinning frame and sample product twister, the user has been affirmed.- Cayman companies are willing to provide you with quality products and services.

同时公司和上海国际羊毛局合作，开发了小样针梳机、小样细纱机、小样捻线机，得到了用户的肯定。

In order to enhance the classification information of the single training sample, each training sample is combined with its reconstructed image gotten by perturbing the image's singular values into a new training sample.

为了加强单训练样本的分类信息，训练样本与其基于受扰动的奇异值的重构图组合成新样本，Fourier频谱作为人脸识别特征，在ORL人脸库上的实验结果表明了该方法的有效性。

A little of the diaylsed solution was dilluted with distilled water (1:4) and applied to metallic sample plate following negative staining with sodium phosphotungstate solution. The sample was freeze-dried and examined by transmission electron microscopy 1.4 IFvs size and size distribution measured 1.5 The shape morphology of IFvs 1.6 Measureing the encapsulation efficiency and loading capacity of Liposomal Gd-DTPA A sample volume of 5ml was sent to analyze (Zhongshan University Analytical Center, Guangzhou).

1.6 Gd-DTPA脂质体包封率及载药量的测定取5ml前述离心后所得上清液送交中山大学分析测试中心，采用高频电感耦合等离子发射光谱法测定离心液中Gd-DTPA含量，用加入总的Gd-DTPA量减去离心液中的Gd-DTPA含量即得包封量。

The tests show that concrete Poisson"s ratio is approximate same value between cylinder and prismoidal sample, and stability length of tested concrete Poisson"s ratio with cylinder sample is longer than with prismoidal sample.

理论上分析了采用圆柱体试件测定混凝土泊松的应变特征，通过试验得出由两类测试试件得到的泊松比近似相同，圆柱体试件测定泊松比时较棱柱体试件的稳定段较长。

Fostering the concept of multi-culture firmly and mastering the development of advanced culture correctly are conductive to resisting terrorism, separatism of nationalities and ultraism of religion, which is of great academic theoretical, immediate and profound historical si...

牢固树立多元文化的理念和正确把握先进文化的发展方向，有助于在世界范围内自觉地抵制恐怖主义，民族分裂主义和宗教极端主义。不仅具有重大的学术理论意义，而且也具有重大的现实意义和深远的历史意义。

But if anyone walks in the night, he stumbles, because the light is not in him.

11：10 若在黑夜行走，就必碰跌，因为那光不在他里面。