查询词典 sampling error

Sampling designing based on spatial distribution and variability of soil properties is an important issue in recent studies on soil sampling.

利用土壤空间变异特性和空间分布特征进行采样设计是当前土壤采样研究的重要内容。

Methods The stratified random sampling rule and the standard grading system of blindness set by WHO were adopted in the study, and 11 327 subjects were enrolled (a sampling fraction of 2.01%) in the whole county.

采用分层随机抽样原则，以世界卫生组织盲目分级为标准，对全县按2.01%抽样比例抽取11327例进行盲和低视力的流行病学调查。

The two kinds of mistakes existing in sampling inspection are analyzed and the characteristics of two kinds of sampling inspection are discussed in the dissertation.

本文以概率论、数理统计为基础，分析了抽样检验两种错误的产生原因，论述了监督型抽检与验收型抽检的特点。

This contributes to the scientific establishment of sampling method.The sampling procedure for inspection by attributes is putted forward in this paper.

在对计量抽样检验方案进行研究的基础上，论文提出采用计量标准型抽样检验方案进行混凝土强度的检验。

The influences of sampling method and sampling depth on stability and the selection of analysis conditions have been discussed.

对取样、制样深度对稳定性的影响、对分析条件的选择进行了探讨。

Another method of sampling is called line sampling.

取样的另一种方法称为在线取样。

Then, researcher selected adequate number of classes from every region in Taipei through convenience sampling in order to maintained apposite sampling ratio of population.

研究者参酌区域的代表性，先以「分层取样」为原则，再以「立意取样」方式於各区抽取适当的班级数，并维持适当的母群抽样比率。

Then according to the good decreasing property of Chebyshev expantion, we prove the better characteristics of nonuniform sampling DCT in compression ratio and compression quality comparing with uniform sampling DCT.

然后根据Chebyshev展开式良好的下降特性，证明了文章提出的非均匀取样的DCT变换与传统的均匀取样DCT变换相比在信号的压缩倍数和压缩质量方面所具有的良好特性。

Simple random sampling; stratification ; ratio and regression estimates; systematic sampling, subsampling; cost functions and choice of optimal design; estimation procedures.

简单随机抽样，分层抽样、比率和回归估计，系统抽样、次级抽样，成本函数与最优设计选择；估计过程。

Self-inspecting refers to the production of the finished product on their own or in the production of semi-finished goods;互检 refers to the yearly-in-command, team leader between mutual inspection, monitoring each other; strict is under operation to operation; measuping is a quantitative analysis of quality inspector, timing, or randomly on the production of semi-finished or finished product quality inspector, sampling inspection, which is based on the bookbiding workshop in sampling ratio, the ratio of non-conforming and company's check basis and expected to be a standard, to be fair, just and open to the law.

自检是指在生产过程中对自己生产的成品或半成品的检查；互检是指每道工序的机长、组长间进行互相检查、互相监督；层层把关检是指下道工序对上道工序的检查；抽检是指由专业的质检员定时、定量或随机地对所生产出来的半成品或成品进行抽样检验，其中质检员是根据装订车间的抽样比例、不合格比例及公司的各项检查依据和要求为标准，公平、公正、公开地办事。

Multifold report forms and statistic diagrams can be generated and the control diagram required for working procedure can be produced.

生成各类统计报表，和统计图，做出工序控制所需的控制图。

The best example of their conservativeness would probably be the case of how they had treated Galileo.

我们从教廷如何对待伽利略就可看出他们对於科学性的新发现是多麼的恐惧。