查询词典 cluster sampling

Methods:From 1987 to 1992,hospital-based cluster sampling method was adopted for collecting data.

采用以医院为基础的监测方法收集资料。

A total of 15 838 nationally representative subjects aged 35 to 74 were selected with multistage cluster sampling.

共调查了35～74岁的成年人15 838人。

The samples were collected by way of cluster sampling and 798 were available.

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Methods Stratified random and cluster sampling methods were employed in this study.

正确使用安全、可靠的避孕方法是降低意外妊娠的关键。

Methods Cluster sampling method was used in the 717 persons aged 60 and over in Yanjiao Developing Area.

采用整群抽样方法对河北省燕郊年龄≥ 6 0岁 717名老年人进行问卷调查。

Cluster sampling and questionnaire of traffic safety consciousness of school students in Shanghai were conducted in this study.

采取整群抽样的方法，同时采用统一编制的"上海市中、小学生交通安全知识认知调查表"进行调查。

Methods Cluster sampling was used, and epidemiological investigation was carried by means of questionaires.

采用整群抽样的方法，运用自编的调查表进行流行病学调查。

A stratified random sampling method, cluster-sampling unit, was adopted to select the required student samples which included 421 students from 14 primary schools, 462 students from 15 junior-high schools, and 623 students from 16 high schools in Kaohsiung, Taiwan.

本研究以分层随机抽样方式选取高雄地区45所学校共1516名学生，包含14所国小共421人、15所国中462A、16所高中623人。

000 People （at the age of 18 -69 ） were investigated through sampling and analyzed by adopting the method of delaminating cluster sampling and the test system on scientific literacy conflated by the Scientific Association of China and the questionnaires.

按照中国科协制定的科学素养测试体系和问卷模式，采取分层抽样方法，对柳州市3000名18岁-69岁公众进行抽样调查。

Methods: Cluster sampling was used in randomly selected individuals (aged ≥ 50 years) in the southern rural area of Heilongjiang. After the pre-experiment uniform standard was completed, 5058 individuals (91%) were received visual acuity test and eye examination. Two consistency tests were successively performed in the two of sampling units during the survey in order to guarantee the quality.

采用整群随机抽样方法将黑龙江省南部农村人口按一定的标准划分成抽样单位，两组人员通过预实验统一标准后对年龄≥50岁共5058人（受检率91%）进行视力和眼部检查，先后在其中的两个抽样单位进行一致性检验。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。