查询词典 sampling fraction

Our company has designed and produced successfully series of Fast Response Sampler which are the newest units for sampling by absorbing the advanced technology from abroad They boast a series of strong points,such as fast response to the sampling,simple operation,high accuracy and so on,It is an ideal unit for sampling.

科学技术的进步，推动着检测技术的发展，我公司在学习国外先进技术的基础上研制成功，并已投入生产快速取样器系列产品，是最新颖的取样装置，它具有取样快速、制样简单、质量优良等一系列优点，是一种理想的取样工具。

First, the importance of synchronized sampling based on GPS for power system is introduced. Second. the generalscheme of GPS-synchronized sampling unit developed by the authors is presented. Then, the design scheme of each part ofthe GPS-synchronized sampling unit is presented in detail.

介绍了基于 GPS同步采样在继电保护和自动装置等方面的作用，提出了实现 GPS同步采样的方案，详细给出了基于 GPS同步采样单元的设计方案，并给出了其在故障定位和输电线路参数测量中的应用举例。

Cluster sampling: When the basic sampling unit in the population is to be found in groups or cluster s the sampling is sometimes carried out by selecting a sample of cluster s and observing all the members of each selected cluster .

整群抽样：一种抽样方法。当母体中的基本抽样单位是按群、组分类时，有时抽样方式是选择一类样本群组，然后对被选择的群组中的每一个样本单位的全体成员进行观察。

Cluster sampling: When the Basic sampling unit in the population is to be found in groups or clusters the sampling is sometimes carried out by selecting a sample of clusters and observing all the members of each selected cluster.

整群抽样：一种抽样方法。当母体中的基本抽样单位是按群、组分类时，有时抽样方式是选择一类样本群组，然后对被选择的群组中的每一个样本单位的全体成员进行观察。

The 3D wavelet sampling theorem has been obtained from 1D wavelet sampling theorem using scalar product method and then it is used to improve ART in direct volume reconstruction. In the other hand, the 1D wavelet sampling theorem is applied for the analytic direct reconstruction algorithm too.

7将一维小波取样定理推广到高维情形，并以此给出了一种改进的直接体积重建的ART方法，并进行了计算机模拟；将一维小波取样定理应用到了解析类的直接体积重建算法之中。

A sampling oscilloscope is a special type of DSO that exclusively uses a technique called "sequential equivalent-time sampling" or just "sequential sampling".

采样示波器是一类特殊的数字存储示波器，使用了独特的技术"连续等效时间采样"或"连续采样"。

Two-stage sampling has only one chance of using the information provided by samples to determine the following plan. Pure sequential sampling, however, could use sampling size sparingly. In addition, in some cases, pure sequential procedures have to be applied to acquire the confidence intervals which meet the demands.

两步抽样，只有一次机会利用样本信息决定今后计划，采用纯序贯则可使平均抽样次数节省，另外，在一定的分布族中必须采用纯序贯才能取得满足要求的区间估计。

Then we suggested the technology of sequential sampling and theoretical sampling and distribution points of random sampling of the loose smut of wheat by using the Iwao and Kuno and Green and Iwao-Kuno methods which may be useful for reference to forecast and control this disease.

用Iwao、Kuno、Green和Iwao-Kuno方法研究，提出了序贯抽样技术、理论抽样数和随机抽样分布点，以供在测报和防治工作中参考。

Most commonly, it begins with random cluster sampling and then applies simple random sampling or stratified random sampling

最常见的是，从随机整群抽样开始，然后应用简单随机抽样或者分层随机抽样

The sampling population of this study is girls at five-year, two-year, four-year and two-year technology of a selected college of commerce in Taipei City in stratified random sampling selection with class as sampling unit. A total of 424 girls are included in the formal survey and 405 valid questionnaires collected.

本研究以国立台北市某技术学院在学日间部五专、二专、四技、二技等学制女学生为抽样母群，采分层随机丛集取样方式，以班级为取样单位，正式施测时共抽取424人，有效问卷405份。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。