查询词典 sampling fraction

Through compared with the difference of the sampling inspection's OC curves between existent and nonexistent inspection error by utilizing grouping method, we get the conclusion that all the traditional methods are designed on the premise that there is none inspection error exist, so it would terribly depress the probability of acceptance and couldn't veritably reflect the quality of the lot for inspection, if the inspection error is exist when sampling inspecting.

同时通过对集团检验错误存在与否的抽样检验特征曲线的比较，指出：以往的集团抽样检验方案设计，都是在假设无检验误差前提下设计的，在抽样检验中，若存在检验错误，会严重影响抽样检验的接收概率，使抽样检验结果不能客观地反映检验批的质量。

Sampling error or allowable error is conventionally accepted between 1% and 10%; however, it is suggested that sampling error should be carefully assessed in light of the nature of the derivation of the population proportion and other aspects of the initial data.

抽样误差或允许误差是接受常规的1 ％和10 ％，但是，有人建议，抽样误差应当认真评估根据的性质推导的人口比例和其他方面的初步数据。

Meanwhile, the part of software has realized the function of the alternating electricity parameter analysis, the directing electricity parameter analysis and the demonstration, which is taking the sampled data in a sampling cycle as the examination object, and carrying on the analysis with the digital signal processing technology to the sampling data, and then programming with single chip.

软件部分则是以一周期内采集的数据为检测对象，用数字信号处理技术对采样的数据进行分析，用单片机进行编程，实现交流电参量和直流电参量分析及显示功能。

A chessboard-sampling method was used to count the apothecium number in 1 m 2 of each sampling site in the field. The results showed that the apothecium of

结果表明： 1997 年春油菜菌核病菌田间子囊盘于 6 月中旬始见，之后其数量出现快速增加，并分别在 6 月 29 日、 7 月 8 日及 7 月 26 日至 8 月 2 日间出现 3 次高峰期。

We summarized the methods and application of wildlife surveys in China, and analyzed the problems and faults with these methods. We introduced the method of map strip sampling which we used in a survey of argali resources in all international hunting grounds, and compared the results and differences in application with line transect sampling.

中文摘要：本文全面总结了我国野生动物调查的主要方法及应用，分析了已有方法在应用中的问题和缺陷，介绍了国际狩猎场的盘羊资源调查方法--地图样带法，并比较了该方法与样线法得出的调查结果差异和两种方法在实际应用中的区别。

Simulation results show that, for the fixed sampling frequency, the error rises with the frequency increasing of periodic signal, and decreases with the attenuation time constant increasing of non-periodic signal. The sampling frequency determines the upper limit of appropriate frequency band directly. The research provides the basis for the selection of cutoff frequency in filter design.

仿真结果表明，在采样频率确定时，对于周期信号，计算误差随频率的增加而增大，而对于非周期信号，计算误差随衰减时间常数的增大而减小，采样频率大小决定了插值法用于分布参数模型的适用频带上限，该研究为滤波器设计中截止频率的选择提供了依据。

The network microcontroller DS80C400 is the core of the network interface board, which implement the connection between the sampling board and the Ethernet. The network interface board sends the audio data sampled by the sampling audio board to the multicast address of the network.

网络接口板以网络微控制器DS80C400为核心器件，主要实现音频采集板与以太网的接口，将音频采集板采集到的各路音频数据发送到各自的多播地址。

AUDIO: a sound board with 8-bit, 11.025-kHz sampling and 22.05-kHz playback; a synthesizer capable of playing eight notes simultaneously using five different sounds; a mixer to combine CD audio, sampling, and synth; a microphone input; and MIDI in, out, and thruports.

音频功能：一块8位的、11.025kHz取样和22.05kHz回放的声卡；能同时放8个使用5种不同音色的音律的合成器；能把光盘音频、取样和合成声音混合起来的混声器；麦克风输入；MIDI输入、输出和通路。

AUDIO: A sound board with 8-bit, 11.025-KHz sampling and 22.05-KHz playback; a synthesizer capable of playing eight notes simultaneously using five different sounds; a mixer to combine CD audio, sampling, and synth; a microphone

声频功能：一块8位的、11.025KHZ取样和22.05KHZ放声卡；能放出8个同时使用五种不同音色的音律的合成器；把光盘声频、取样和合成声音混合起来的混声器；麦克风输入；MIDI输入、输出和通路。

In this paper, the regression estimation for multivariate simple random sampling and stratified sampling is discussed, it is proved that this method is more available than the estimation without auxiliary variable, and some statistical inferences of population mean are given.

文章系统地讨论了多元简单随机抽样及分层抽样的回归估计法，说明与无辅助信息抽样相比，回归估计法是一种更有效的方法，并得出了总体均值的一些统计推断。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。