查询词典 sampling method

Though stratified random sampling method is adopted for the arterial and collector functional systems, there is a good potential to improve it.

尽管分层随机抽样的方法已经在干线和一般的集散系统得到利用，它仍有很大的发展空间。

The phase difference correction method is presented to measure the parameters of random sampling unbalancing signal.

实验表明结果该方法可以获得较高的测量精度。

A lot of experiments prove that it has relatively high data sampling speed and waveform resolution rata, it provides a new method for the study of the are voltage sudden-changing process.

试验证明该系统具有较高的数据采集速度和波形分辨率，它为电弧电压突变运动过程的深入研究提供了新的分析方法和手段。

For accurate measurement of reactive power in non-sinusoidal circuit, this article introduces a method integrating quasi-synchronous sampling theory with digital-phase-shift network..

在给定定义下，为了准确测量全无功电能，本文介绍了一种结合准同步算法和离散Hilbert的无功测量方法。

In order to know Beijing urban residents' consciousness of tax-paying, recognition and sense of individual income tax and the understanding for the burden condition of individual income tax, this paper, on the basis of adopting sampling questionaire investigation method of meeting by chance, takes the methods of descriptive statistics, correlation analysis, etc. to analyze the condition of Beijing urban residents' individual income tax, and points out that the propaganda of the tax system is not good enough...

为了解北京市居民的纳税意识、对个人所得税的认识和感觉以及对个人所得税负担状况的理解，在采用偶遇抽样问卷调查方法的基础上，使用描述统计、相关分析等方法对北京市居民个人所得税状况进行了分析，针对我国个人所得税制的宣传力度不够，多数人不了解个人所得税的计算，以及统计口径不适合目前分析需要的现状，提出统计口径宏观测算方法和统计调查的改进意见，以期对北京市的税收建设有所帮助。

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。

Objective To evaluate the improvement of diagnostic accuracy with background region of interest rectification for 99mTc-DTPA renography in patients with GFR≤30 ml·min-1·（1.73 m2-1, and to compare with plasma clearance of 99mTc-DTPA (GFRp, dual plasma sampling method).

目的 以99mTc-DTPA血浆清除率为标准，评价在重度肾功能不全[GFR≤30 ml·min-1·（1.73 m2-1]患者GFR的评估中，本底矫正在提高99mTc-DTPA肾动态显像检查准确性中的价值。

Inaddition, it gives the linear time re-sampling method to resample the sample set.

最后给出了对样本集进行重采样的线性时间重采样算法。

A nonuniform down sampling method with borderestimation was proposed to resample the input data set according to local feature before reconstruction.

曲面重建前先通过该算法减少参与运算的采样点，表面特征丰富的区域削减的采样点数远小于特征不丰富的区域，再进行曲面重建。

At last, we complete a sampling system to validate the rightness of the new resolution method.

最后，我们实现了一个尺寸标注系统完备性检查的原型系统，验证了上述原理和方法的正确性。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样