It follows by sampling frame and sampling strategy which discuss how to get the correct and precise sample in the study.

通过抽样框架和抽样策略，讨论如何在研究中得到正确准确的样本。

According to the date of basic units census, this paper designs the sampling frame about the sampling survey of enterprises below designated size in wholesale and retail sale trades.

本文以全国基本单位普查资料为依托，对规模以下批发和零售贸易业抽样调查的抽样框进行设计，设计的思路和方法对其他小企业的抽样调查也具有一定的参考价值。

A fast sampling frame memory of structured light distribution is de- signed, because of the use of large size RAM and preprocessing of the structured light distribution, the circuits is very simple.

设计了一种用于结构光分布图采集的图像帧存贮器（RAM）电路。 由于预先对结构光分布进行了硬件细化处理以及大容量存贮芯片的使用，电路设计十分简单。

Entire drive device is set up on frame of sampling machine.

整个传动装置均设在采样机机架上。

Install the frame of sampling machine that coincides with the frame of belt conveyor.

采样机机架设置在带式输送机机架两侧，整个传动装置均设在采样机机架上。

The principles and the frame of the system to measure liquid height by ultrasonic is presented. The circuit of exciting ultrasonic and sampling environmental temperature is detailed.

介绍了超声波液位测量系统的工作原理和系统框图，给出了详细的超声波发射电路和环境温度采样电路。

Aiming at the present condition of STB video post-processing, analyze the video post-processing algorithms which include sampling conversion, de-interlace and frame rate up-conversion.

然后针对现行机顶盒视频后处理现状，分析了视频后处理所采用的方法，包括采样率转换、去隔行、帧率提升等。

After smoothing, fitting and sampling the discrete space curves, the algorithm calculated Frenet frame and curvature for each sampling point.

该算法对离散的曲线进行光顺、拟合和采样，使用空间曲线微分几何性质计算各采样点的曲率和弗朗·内特标架。

It is evident that the 3-d spatiotemporal sampling grid contains more information than 2-d still-frame sampling grid.

显然，三维时空采样比任何一个二维静态帧采样栅格包含更多的信息。

The sampling rate of continuous video data processed by the system is high , so we use a method by the use of FIFO frame buffer to capture the video.

系统处理的是连续视频信号，数据量大，采样频率高，本文采用了一种利用FIFO的帧中斯管理方法来解决视频信号的采集问题。

Objective:To develop a system for sampling the spectacles frame on automatic lens edger.

目的：研制CCD采集眼镜框边缘尺寸系统。