查询词典 methods of sampling

Methods A total of 852 children aged from 9 to 10 years were recruited with multi-stage sampling.

方法采用多阶段随机整群抽样法抽取852名北京市城区9～10岁学生。

In order to adapt to the alterable optical fiber multiplexed channel, the practice of the different synchronized data-sampling methods was discussed in detail and the data-adjusting method was improved on in this thesis.

本文着重分析了采样数据同步方法的实现，并对其中的采样数据调整法进行了改进，以适应弹性光纤复用通道下数据传输的情况。

Methods Whole group sampling method was adopted, 840 aged 30~70 years residents were investigated in Tongliao, including investigations of questionnaire research, measure stature, avoirdupois, blood pressure, pulse etc.

采用整群随机抽样的方法，抽取年龄在30~70岁居民840人进行调查，包括问卷调查、测身高、体重、血压、脉搏等，对其结果进行流行病学分析。

In the scheme, we use a path time delay estimation method to improve the accuracy of the correla- tion based symbol synchronization methods, and use a tracking loop to lock the symbol synchronization and to track the sampling clock.

在该算法中，我们使用一种路径时延估计的方法来提高基于相关算法码元同步的准确性，并采用一个跟踪环路来锁定码元同步和跟踪采样时钟。

Methods questionnaire survey of 3 500 college students by random cluster sampling.

采用整群抽样抽取3 500名学生，对调查对象进行疾病诊断及影响因素问卷调查。

Methods The stratified cluster sampling was used to research 395 college students of Huangshan college by questionnaires.

采用分层整群抽样方法对安徽黄山学院395名大学生进行网络行为问卷调查。

Based on Iwao's method, the formula of optimum theortical sampling number was established. By using methods for variance analysis, the number of B. tabaci eggs showed little difference on the upper, middle, and lower canopy of L.

应用Iwao的抽样模型，建立了烟粉虱卵的田间理论抽样数公式方差分析表明，烟粉虱卵在女贞树冠上层、中层、下层的分布数量差异不显著。

Based on Iwao's method, the formula of optimum theortical sampling number was established. By using methods for variance analysis, the number of B. tabaci eggs showed little difference on the upper, middle, and lower canopy of L.

应用Iwao的抽样模型，建立了烟粉虱卵的田间理论抽样数公式方差分析表明，烟粉虱卵在女贞树冠上层、中层、下层的分布数童差异不显著。

Methods With random cluster sampling, a total of 196 parents were chosen from rural communities in district of Xi'an city.

采用整群随机抽样的方法，在西安市农村社区的 4个乡抽取 10个村 196名小儿喂养人进行现场问卷调查，采用SPSS10 。0软件包进行统计分析。

Methods Decorated houses within 6 months in Changchun were selected with the method of cluster radom sampling.To examine densities of formaldehyde,ammonia,total volatile organic compounds and complete questionaire.

采用随机整群抽样的方法，在长春市选择装修6个月内的住户，监测甲醛、氨和总挥发性有机物的浓度，同时进行问卷调查。

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。