查询词典 sampling methods

Methods Using simple cluster sampling method, subjects living in Bejing, Tianjin, Shanghai and Nanjing cities in China were selected and detail information on house decoration and family member's health status was collected.

采取整群抽样的方法，选取北京、天津、上海及南京4个城市住户并且常住在家的人员作为研究对象，调查居室装修相关信息和家庭成员的健康状况。

Methods 1000 cases from each of the six community committees under the jurisdiction were investigated through random sampling, their unhealthy lifestyles were analyzed and intervened through targeted health education, home visits, telephone follow-up as well as community-based patients sodality.

采用整群随机抽样方法，从所辖6个居委会中各抽查1000户，采取统一格式的健康调查表调查社区居民的不良生活方式，并对结果进行统计分析；对不良生活方式采取针对性健康教育、家庭访视、电话随访、成立社区病友联谊会等措施进行干预，并分析其效果。

Methods: International conventional sphygmomanometry was used to carry out cluster random sampling survey of hypertension and the prevalence rate of hypertension as well as RR, AR, ARp, U test in whole district population (15 384 persons).

以国际通用血压测量方法对全区15 384人进行整群随机抽样调查，着重对有、无不良生活方式的两组人群进行高血压患病率调查，及相对危险度、归因危险度、人群归因危险度、U检验等的检测，以及相关及多元回归分析。

Methods Random sampling method was used to collect samples twice from the spray-paint plants during the work time and 0.5 hour after work; the samples were sent to the laboratory and detected according to the national standard.

采取随机抽样方法，对每个喷漆车间工作时和停工后0.5h采样2次，采样4h内送实验室，按国家有关标准直接进样检测。

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。

In the first section of this paper,we establish basic methods and theories of multivariate Sampling and obtain lots of results of statistical inference.

本文第一部分建立了较为系统的多元抽样方法和理论，第二部分解决了多维时间序列统计推断中一个具体问题。

Should strengthen data collection, collation and analysis of the work, to improve sampling and statistical inference methods for macro-control to provide a solid foundation.

应加强数据收集，整理和分析工作，以提高抽样和统计推断方法的宏观调控提供了坚实的基础。

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。

Methods 7 282 children aged 2 to 5 years were selected by stratified sampling from twelve software.

分层随机抽取我国12个省市7 282名2～5岁儿童作为研究对象。

Methods Students from 6 high schools in Hangzhou were selected by stratified sampling.

中学生的学习成绩是社会、学校、家庭关注的主要问题。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。