查询词典 sampling methods

Methods (1) Randomized stratified clustered sampling method was used.

(1)采用分层整群随机抽样法，收集徐州市

Methods A self-developed questionnaire was used to investigate 2600 old persons selected in 26 provinces by stratified sampling.

方法在26省按照城乡和男女分层抽样，对2600名老年人进行问卷调查，并对有效的2414份问卷进行数据统计学处理。

Methods The Knowledge of occupational hazard and prevention in different enterprises was investigated by stratified random sampling.

方法采用整群抽样的方法对不同行业的外资企业农民工进行职业病危害因素认知及其防护知识的问卷调查和统计分析。

In order to reduce the systematic error introduced by non-integer-period sampling, the spectrum correction methods were studied.

针对非整周期采样误差影响频率计算的精度的问题，研究了频谱校正方法。

With the methods of systematic and random sampling, the 39 grasshopper species and more than 3000 specimens had been collected in 5 kinds of habitats, belonging to 5 families, 26 genera.

采用系统取样和随机取样相结合的方法调查了5种生境中蝗虫的种类和数量，共采集到蝗虫39种，标本3000余号，隶属于5科26属。

Methods 3944 persons were selected by systematic sampling in 3 districts.

采取分层随机整群抽样的方法，于2006年10月和2007年9月进行2次调查，以示范路上沧浪区、金阊区、高新区的33个单位、10个社区居民，共计3 944人作为调查对象。2007年9月，以非示范路上某区采取同样方法抽取居民809人进行问卷调查。

Methods Questionaires were gotten by 1/10 systematic random sampling in age 20 and elder than 20 in an urban community of Jinan.

1995年国际糖尿病联盟在世界糖尿病日提出的口号是"尽量减少因对糖尿病无知而付出的代价。"

With the methods of systematic and random sampling, more than 2000 specimens were collected in 7 kinds of habitat, belonging to 3 superfamilies, 11 families, 30 genera and 48 species. Of the collected specimens, grasshopper has the most species accounting for 62.5% of the total species.

采用系统取样和随机取样相结合的方法调查了7种生境中直翅目昆虫的种类和数量，共采集到昆虫48种，标本2000余号，其中蝗虫类30种，蚱类6种，螽斯类12种，隶属于3总科，11科，30属。

METHODS It was compared for quality of the hospitalized medical history by using systematic sampling method and collected 300-patient medical history separately before （from January to June,2005） and after （from January to June,2008） Hospital Management Year activities.

采用系统抽样的方法，分别抽取医院管理年活动前（2005年1～6月）和医院管理年活动后（2008年1～6月）住院病历各300份，对住院病历的质量进行比较。

And we also proposed new methods to the study of thioridazine hydrochloride-BSA binding and methotrexate in dissolution testing based on dialysis sampling and flow injection on-line filtration, dilution techniques.

将方法应用于片剂中盐酸硫利达嗪含量的分析，测定结果与药典法一致。结果表明该方法具有检出限低、线性范围宽、精密度好以及分析速度快等特点。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。