查询词典 sampling methods

Methods A questionnaire survey was conducted among 698 blood donators without compensation enrolled by random sampling.

采用专门设计调查表，对随机选择自愿参加个人无偿献血人员共698人进行调查。

Title Technical Memorandum on Procedures and Methods for Sampling and Analysis of Trade Effluents.

工商业污水采样与分析的步骤及方法技术备忘录。

On the basis of summarizing the status quotation of related researches at home and abroad, problems in related researches and studies are analyzed and the important research fields and contents in marsh sedimentology are chosen:Establishing different model of marsh sedimentation, to support marsh definition and classification from sedimentology; Advancing theory and quantification, to analyze formation process of marsh from quality to quantity methods; Applying modern sampling system and setting up standard sedimentation profiles; Strengthening the research of gleying marsh inland and its recent process and evidence derived from sedimentation profile; Enlarging geography fields and comparing between spatial and temporal research, and enforcing regional short timescale and highresolution environmental change; Paying much more attention on correlations between watershed environment and information derived from marsh sedimentary records and especially on their controlling mechanism.

主要从学术文献、权威机关与科研机构两个方面对相关的国内外研究现状和进展进行总结，针对国内外研究现状和存在的问题提出了今后研究的重点：建立不同成因的沼泽沉积环境模式，从沉积学角度对沼泽定义及分类提供支撑；注重理论提升与定量化，使沼泽形成过程分析从定性描述走向定量化；注重现代化采样系统的应用与标准沉积剖面的建立；加强内陆潜育沼泽研究，注重现代过程与沉积剖面证据；扩大地理覆盖面，加强时空对比，加强沼泽区域性短尺度、高分辨率环境演化研究；深化沼泽沉积信息与流域环境变迁耦合机制研究。

Methods:4640 children under 5 years old by the method of random sampling in four blocks in communities of Liuzhou was conducted , to measure their heighs and weights.Then do regression questionnaire surveys in some parents of these children.

在柳州市四个城区采取随机整群抽样的方法抽取5岁以下儿童共4640名进行身高体重测量及对其中部分儿童家长进行回顾性问卷调查。

The first step was to use some very vigorous sampling-based methods to estimate population densities of herbivores.

第一步就是采用一些有效的取样方法估算食草动物的种群密度。

Another method is fault location algorithm using short data window in the calculation. Because the saturation time of current-transformer lag behind the instant of fault occurrence, it is possible to determine the fault location utilizing the sampling data prior to the saturation. The simulations showed that both of the methods can solve the problem of current-transformer saturation.

方法二是短数据窗定位算法，通过大量仿真发现电流互感器的饱和要滞后于故障短路时刻，短数据窗法就是抢在互感器饱和之前，利用未饱和的有效数据来计算故障点位置。

Methods According to the random sampling, 100 foot-bath massagists were selected from 30 foot-bath saloons in Changning District, the analysis suggested that hygienic conditions in beauty parlors took a turn for the better, and at the same time, those who work in beauty parlors began to apply hygienic knowledge to their routine duties after the multiple interference.

方法采用随机抽样方法，从长宁区30家足浴房随机抽取100名足浴按摩师进行综合干预，并对他们的卫生知识知晓率及卫生行为合格率作干预前后比较。

In the course of the study,it was found that using different sampling methods would make different kinds of volatiles,even the relative content would not remain the same.

然而，在实际研究中人们发现不同的采集方法直接影响到挥发物的种类和它们之间的比例关系，从而给这一领域的研究带来不确定性，甚至误导。

Methods By using sampling investigation, three countries were selected in Yan'an, pupils' thyroids were examined by palpation and B-ultrasonograph; pupils and women were determined of their urinary iodine and the iodine salt in families; the students in the fifth grade and women of childbearing age and examined 6 ～ 14 year-old pupils'IQ.

用抽样调查的方法随机抽取了延安市3县，触诊和B超检查甲状腺情况，测定小学生及育龄期妇女尿碘，测定用户家中食用盐碘含量，对5年级学生及育龄期妇女进行问卷调查，测试6～14岁学生智商。

Methods: From June to December, 2007, sampling and monitoring all levels' medical institutions including indoor air, surface of object, the medical staff hands, using disinfectants and sterilization of medical items, according to "Hospital Disinfection Hygiene Standards" and "Technical Rules of Disinfection" in all district.

2007年6~12月对全区各级医疗机构的室内空气、物体表面、医护人员双手、使用中消毒剂、灭菌医疗用品等按《医院消毒卫生标准》及《消毒技术规范》进行了采样和监测。

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。