查询词典 sampling methods

Methods Collecting basic information of 67 community health service institutions applying method of self-filling questionnaire sampling, inputting data with Epidata 3.02, analyzing with EXCEL.

方法采用自填式问卷抽查的方法，收集67家社区健康服务机构基本资料，采用Epidata3.02建立数据库并录入数据，用Excel进行分析。

Methods The inquiry field test and grade random sampling were emplyed on a group of people naturally selected in Shanxi Province.

在陕南、陕北和关中采用分层整群抽样方法，对抽中的村自然人群进行调查，分病种进行病原学检查，并进行统计分析。

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 A crosssectional survey was conducted among 713 students from a secondary vocational school in Hefei by using cluster sampling method.

采用整群抽样方法在合肥市某中专学校对713名学生进行问卷调查。

The sampling cultivations were applied before and after sterilization to compare the effects of the two methods.

第2阶段：入选含氯消毒剂浸泡处理后细菌培养符合国家标准要求的雾化吸入器，再分两组分别采用原包装袋、无菌治疗巾进行保存，两组均在保存1、2、3 d后采样做细菌培养，比较两种方法的保存效果。

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 Randomized cluster sampling and a selfmade questionnaire were used in an onscene investigation.

采用随机抽样方法，运用自行设计的问卷调查表现场调查。

Exibility for point sampling. Secondly, by combining the splat-ting algorithm with Layered Depth Buffers, we implement an algorithm fordetermining the points'visibilities and re?ectance properties, which is more accuratethan pervious methods.

其改进之处包括两点：一方面，根据灭点的性质，设计出等间隔索引表的结构来组织采样图像中物体的轮廓边，有效地提高了点采样的效率；另一方面，通过将splatting绘制算法和层次深度缓存的数据结构相结合，提出了一种高精度的点云可见性判断算法，从而克服了已有方法存在可见性判断误差的缺点。

Methods Decorated houses within 6 months in Changchun were selected with the method of cluster radom sampling.

摘要摘要：目的探索室内装修空气污染的主要污染物、污染程度及对人群健康的影响。

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。