取样

Methods 52 patients who were chosen by convenient sampling were measured the anxiety levels in three different time spots with the STAI scale before their operations in ICU and after transferred to wards.Meanwhile,patients general information was collected by free talk.

采用方便取样的方法选择心外ICU的成年病人52例，分别在病人术前、术后进入ICU中及转入普通病房后，应用状态-特质焦虑问卷对病人的心理焦虑水平进行测评，同时以访谈的形式收集病人资料。

The pipeline between Fu-Liang Tanghe and East Valve Station have harnessed anti-corrosive agent for years. It showed slower corrosion.It justifies the correctness and applicability of the analysis of anti-corrosive agent in gas transmission line.

在多年来一直加注缓蚀剂的佛两线塘河至东阀站之间，以及试验管道上采用取样分析的方法对输气管道中缓蚀剂浓度进行了分析测试，测试结果表明管线缓蚀效果明显，这验证了文中所建立的输气干线缓蚀剂分析方法的正确性和适用性，从而提高管线的安全运行能力。

A structure of stonework,cement,or other material built to retain a flow of water.

明渠液体流量测量。沉积物的运输。砾石河床材料的取样和分析

And then, the contiunous current modeof this circuit is discussed, and the PWM circuit and over-current -protection circuit are designed. At the same time, the calculation methods of storage inductance, output capacitor and sampling resistor are given.

讨论电路的电流连续工作模式，设计了电源的脉宽调制电路和过流保护电路，并给出了蓄能电感、输出电容和输出电压取样电阻的确定方法。

Analytic methods based on elementary parametric and non-parametric models for one sample; two sample, stratified sample, and simple

主要目标是由已知的样本资料经由正确有效的分析来推测母体所具有的特性；另外则是适当地设计样本取得的程序及取样的范围，以便使所观察样本显现的特性能真实反映母体的现象，进而能以简洁的分析，作有效的推论。

The cross-sectional approach used a stratified sample, based on an initial list of electric power connections, resulting in the selection of 707 individuals over 18 years of age.

横截方法根据电力连接一张最初的名单使用了分层取样，造成707个个体的选择在18岁期间。

Stratified random sampling was used to recruit 553 participants, and response rate was 70.5%.

取样方式为分层随机抽样，共发出553份，回收390份，回收率70.5%。

For specific object searching, the amount of redundant information, which is acquired by uniform sampling sensor, will cost much computer time. The mapping between the retina of human eye and the striate cortex can be approximated by a log-polar coordinate mapping.

文中提出了一种基于对数极坐标映射的目标搜索方法，均匀取样的传感器所获得的像包含有许多相对特定目标搜索而言冗余的信息，对这些信息的处理往往要消耗许多时间。

Since the summer of this year, the local emergence of dry pine stumpage previous years the phenomenon of a relatively large increase, while in some samples of dead pine wood nematode was first detected to be, Wuyi County, is enhanced search, in particular is to strengthen the right pot Mountain Provincial Forest Park, Tong-Qin town, the new Zhai Town, and other key regions in the dead pine forests microscopy sample separation, so far the county has accumulated more than 20 batches of samples microscopy showed no pine wood nematode.

今年入夏以来，当地出现了松木枯立木比往年有较大幅度增多的现象，同时在一些枯死松木样品中首次检出了拟松材线虫，武义县更是加强了查检工作，尤其是加强了对壶山省级森林公园、桐琴镇、新宅镇等重点地域山林中枯死松木的采样分离镜检，至今全县已累计取样镜检20多批次，未发现有松材线虫。

The result showed that the growth of subaerial parts of plant community isn't obviously isochronous with the seed bank. So the inherent potential of soil seed bank has important influence on the regeneration of forest and the dynamic succession of plant community.

另外，种子库中优势成分与取样地点地面植被相应层次的优势种存在较大差异，说明植物群落地上部分的发育与其它地下部分的土壤种子库的发育具有明显的不同步性，这一结果表明土壤种子库的内在潜力对森林更新及植物群落演替动态产生了重要影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。